Detailed Description

methods used by the majority of operations involving floating-point computations in SCIP

query the numerical tolerances of SCIP, as well as special values such as infinity.
change tolerances inside relaxations
epsilon-comparison methods for floating point numbers

Functions
SCIP_Real	SCIPepsilon (SCIP *scip)

SCIP_Real	SCIPsumepsilon (SCIP *scip)

SCIP_Real	SCIPfeastol (SCIP *scip)

SCIP_Real	SCIPlpfeastol (SCIP *scip)

SCIP_Real	SCIPdualfeastol (SCIP *scip)

SCIP_Real	SCIPbarrierconvtol (SCIP *scip)

SCIP_Real	SCIPcutoffbounddelta (SCIP *scip)

SCIP_Real	SCIPrelaxfeastol (SCIP *scip)

SCIP_RETCODE	SCIPchgFeastol (SCIP *scip, SCIP_Real feastol)

SCIP_RETCODE	SCIPchgLpfeastol (SCIP *scip, SCIP_Real lpfeastol, SCIP_Bool printnewvalue)

SCIP_RETCODE	SCIPchgDualfeastol (SCIP *scip, SCIP_Real dualfeastol)

SCIP_RETCODE	SCIPchgBarrierconvtol (SCIP *scip, SCIP_Real barrierconvtol)

SCIP_Real	SCIPchgRelaxfeastol (SCIP *scip, SCIP_Real relaxfeastol)

void	SCIPmarkLimitChanged (SCIP *scip)

SCIP_Real	SCIPinfinity (SCIP *scip)

SCIP_Real	SCIPgetHugeValue (SCIP *scip)

SCIP_Bool	SCIPisEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisInfinity (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisHugeValue (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisScalingIntegral (SCIP *scip, SCIP_Real val, SCIP_Real scalar)

SCIP_Bool	SCIPisFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPceil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPround (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisSumNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisFeasZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisFeasFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasFloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasCeil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasRound (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPfeasFrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisDualfeasZero (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasPositive (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasNegative (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasIntegral (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisDualfeasFracIntegral (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasFloor (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasCeil (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasRound (SCIP *scip, SCIP_Real val)

SCIP_Real	SCIPdualfeasFrac (SCIP *scip, SCIP_Real val)

SCIP_Bool	SCIPisLbBetter (SCIP *scip, SCIP_Real newlb, SCIP_Real oldlb, SCIP_Real oldub)

SCIP_Bool	SCIPisUbBetter (SCIP *scip, SCIP_Real newub, SCIP_Real oldlb, SCIP_Real oldub)

SCIP_Bool	SCIPisRelEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisRelGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelEQ (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelLT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelLE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelGT (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

SCIP_Bool	SCIPisSumRelGE (SCIP *scip, SCIP_Real val1, SCIP_Real val2)

int	SCIPconvertRealToInt (SCIP *scip, SCIP_Real real)

SCIP_Longint	SCIPconvertRealToLongint (SCIP *scip, SCIP_Real real)

SCIP_Bool	SCIPisUpdateUnreliable (SCIP *scip, SCIP_Real newvalue, SCIP_Real oldvalue)

void	SCIPprintReal (SCIP scip, FILE file, SCIP_Real val, int width, int precision)

SCIP_Bool	SCIPparseReal (SCIP scip, const char str, SCIP_Real value, char *endptr)

Function Documentation

◆ SCIPepsilon()

SCIP_Real SCIPepsilon ( SCIP * scip )

returns value treated as zero

Returns: value treated as zero

Parameters

scip	SCIP data structure

Definition at line 137 of file scip_numerics.c.

References NULL, and SCIPsetEpsilon().

Referenced by addCut(), addCuts(), bilinboundGetScore(), checkRedundancySide(), computeFixingOrder(), computeMIREfficacy(), computeVertexPolyhedralFacetLP(), consEnfo(), convertUnaryEquality(), createCGCutCMIR(), createCGCutStrongCG(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutsTransformKnapsackCover(), cutsTransformStrongCG(), dualPresolve(), estimateBivariateQuotient(), estimateConvexSecant(), estimateGradient(), estimateUnivariateQuotient(), evaluateCutNumerics(), forwardPropExpr(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), normalizeCons(), prettifyConss(), removeZeros(), removeZerosQuad(), reverseProp(), rowprepCleanupSide(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRREVERSEPROP(), SCIP_DECL_EXPRSIMPLIFY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_PRESOLEXEC(), SCIPanalyzeDeductionsProbing(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPcreateFiniteSolCopy(), SCIPcutGenerationHeuristicCMIR(), SCIPgetConcurrentGap(), SCIPgetExprBoundsNonlinear(), SCIPincludeConshdlrNonlinear(), SCIPincludeExprhdlrLog(), SCIPincludeExprhdlrPow(), SCIPscaleupRowprep(), SCIPseparateRelaxedKnapsack(), SCIPtightenExprIntervalNonlinear(), scoreBranchingCandidates(), scoring(), transformNonIntegralRow(), and useBilinIneqs().

◆ SCIPsumepsilon()

SCIP_Real SCIPsumepsilon ( SCIP * scip )

returns value treated as zero for sums of floating point values

Returns: value treated as zero for sums of floating point values

Parameters

scip	SCIP data structure

Definition at line 151 of file scip_numerics.c.

References NULL, and SCIPsetSumepsilon().

Referenced by addCut(), addCuts(), addLocalbranchingConstraintAndObjcutoff(), calculateCutoffScore(), calculateRelCutoffScore(), calculateScoreFromDeeperscore(), calculateScoreFromDeeperscoreAndCutoffs(), calculateScoreFromResult(), calculateScoreFromResult2(), chooseVeclenVar(), createCGCutCMIR(), createCGCutStrongCG(), createNLP(), createSubproblem(), cutsTransformMIR(), cutTightenCoefs(), cutTightenCoefsQuad(), doSolveSubMIP(), evaluateCutNumerics(), generateDisjCutSOS1(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getVectorOfWeights(), initializeCandsLists(), penaliseWithParallelism(), postprocessCut(), postprocessCutQuad(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIPaggrRowRemoveZeros(), SCIPcalcFlowCover(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPcutGenerationHeuristicCMIR(), SCIPincludeHeurGins(), SCIPincludeHeurMutation(), scoring(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipMutation(), setupSubScip(), solveCoveringProblem(), transformNonIntegralRow(), wrapperDins(), and wrapperRins().

◆ SCIPfeastol()

SCIP_Real SCIPfeastol ( SCIP * scip )

returns feasibility tolerance for constraints

Returns: feasibility tolerance for constraints

Parameters

scip	SCIP data structure

Definition at line 165 of file scip_numerics.c.

References NULL, and SCIPsetFeastol().

Referenced by adjustCutoffbound(), analyzeConflict(), analyzeConflictLowerbound(), analyzeConflictUpperbound(), analyzeGenVBoundConflict(), applyNlobbt(), applyObbtBilinear(), calcScore(), checkCons(), computeInteriorPoint(), computeRelaxedLowerbound(), computeRelaxedUpperbound(), computeVertexPolyhedralFacetLP(), cutTightenCoefs(), cutTightenCoefsQuad(), displayRelevantStats(), doSeparation(), enforceConflictgraph(), enforceExpr(), getBranchingDecisionStrongbranchSOS1(), getNLPFracVars(), isConsViolated(), normalizeCons(), performStrongbranchSOS1(), postprocessCut(), postprocessCutQuad(), prepareLiftingData(), presolveRedundantConss(), prettifyConss(), proposeFeasibleSolution(), rangedRowPropagation(), readLIBSVM(), resolvePropagation(), reversePropBilinear(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EXPR_INTEVALVAR(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINIT(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_PARAMCHGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPRESPROP(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPapplyProximity(), SCIPcomputeFacetVertexPolyhedralNonlinear(), SCIPgenerateAndApplyBendersOptCut(), SCIPprocessRowprepNonlinear(), SCIPprocessShellArguments(), SCIPsolveKnapsackApproximatelyLT(), SCIPvalidateSolve(), separateCuts(), sepaSubtour(), setupAndSolveSubscip(), simplifyInequalities(), and solveSubNLP().

◆ SCIPlpfeastol()

SCIP_Real SCIPlpfeastol ( SCIP * scip )

returns primal feasibility tolerance of LP solver

Deprecated:: Please use SCIPgetLPFeastol().

Returns: primal feasibility tolerance of LP solver

returns primal feasibility tolerance of LP solver

Deprecated:: Please use SCIPgetLPFeastol().

Returns: primal feasibility tolerance of LP solver

Parameters

scip	SCIP data structure

Definition at line 181 of file scip_numerics.c.

References NULL, and SCIPgetLPFeastol().

◆ SCIPdualfeastol()

SCIP_Real SCIPdualfeastol ( SCIP * scip )

returns feasibility tolerance for reduced costs

Returns: feasibility tolerance for reduced costs

Parameters

scip	SCIP data structure

Definition at line 195 of file scip_numerics.c.

References NULL, and SCIPsetDualfeastol().

Referenced by applyObbt(), computeInteriorPoint(), createGenVBound(), includeVarGenVBound(), SCIPincludeHeurSubNlp(), and separateCuts().

◆ SCIPbarrierconvtol()

SCIP_Real SCIPbarrierconvtol ( SCIP * scip )

returns convergence tolerance used in barrier algorithm

Returns: convergence tolerance used in barrier algorithm

Parameters

scip	SCIP data structure

Definition at line 209 of file scip_numerics.c.

References NULL, and SCIPsetBarrierconvtol().

◆ SCIPcutoffbounddelta()

SCIP_Real SCIPcutoffbounddelta ( SCIP * scip )

return the cutoff bound delta

Returns: cutoff bound data

Parameters

scip	SCIP data structure

Definition at line 223 of file scip_numerics.c.

References NULL, and SCIPsetCutoffbounddelta().

Referenced by checkParallelObjective(), updateCutoffbound(), and updateObjUpperbound().

◆ SCIPrelaxfeastol()

SCIP_Real SCIPrelaxfeastol ( SCIP * scip )

return the relaxation primal feasibility tolerance

See also: SCIPchgRelaxfeastol

Returns: relaxfeastol

Parameters

scip	SCIP data structure

Definition at line 238 of file scip_numerics.c.

References NULL, and SCIPsetRelaxfeastol().

◆ SCIPchgFeastol()

SCIP_RETCODE SCIPchgFeastol	(	SCIP *	scip,
		SCIP_Real	feastol
	)

sets the feasibility tolerance for constraints

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
feastol	new feasibility tolerance for constraints

Definition at line 253 of file scip_numerics.c.

References NULL, SCIP_CALL, SCIP_OKAY, and SCIPsetSetFeastol().

Referenced by displayRelevantStats(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_PARAMCHGD(), and SCIPvalidateSolve().

◆ SCIPchgLpfeastol()

SCIP_RETCODE SCIPchgLpfeastol	(	SCIP *	scip,
		SCIP_Real	lpfeastol,
		SCIP_Bool	printnewvalue
	)

sets the primal feasibility tolerance of LP solver

Deprecated:: Please use SCIPsetLPFeastol().

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

sets the primal feasibility tolerance of LP solver

Deprecated:: Please use SCIPsetLPFeastol().

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
lpfeastol	new primal feasibility tolerance of LP solver
printnewvalue	should "numerics/lpfeastol = ..." be printed?

Definition at line 273 of file scip_numerics.c.

References NULL, SCIP_OKAY, SCIP_VERBLEVEL_HIGH, SCIPsetLPFeastol(), and SCIPverbMessage().

◆ SCIPchgDualfeastol()

SCIP_RETCODE SCIPchgDualfeastol	(	SCIP *	scip,
		SCIP_Real	dualfeastol
	)

sets the feasibility tolerance for reduced costs

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
dualfeastol	new feasibility tolerance for reduced costs

Definition at line 294 of file scip_numerics.c.

References FALSE, NULL, SCIP_CALL, SCIP_LPSOLSTAT_NOTSOLVED, SCIP_OKAY, SCIPsetDualfeastol(), and SCIPsetSetDualfeastol().

Referenced by applyObbt(), and SCIP_DECL_PARAMCHGD().

◆ SCIPchgBarrierconvtol()

SCIP_RETCODE SCIPchgBarrierconvtol	(	SCIP *	scip,
		SCIP_Real	barrierconvtol
	)

sets the convergence tolerance used in barrier algorithm

Returns: SCIP_OKAY is returned if everything worked. Otherwise a suitable error code is passed. See SCIP_RETCODE for a complete list of error codes.

Parameters

scip	SCIP data structure
barrierconvtol	new convergence tolerance used in barrier algorithm

Definition at line 319 of file scip_numerics.c.

References FALSE, NULL, SCIP_CALL, SCIP_LPALGO_BARRIER, SCIP_LPALGO_BARRIERCROSSOVER, SCIP_OKAY, SCIPsetBarrierconvtol(), and SCIPsetSetBarrierconvtol().

Referenced by SCIP_DECL_PARAMCHGD().

◆ SCIPchgRelaxfeastol()

SCIP_Real SCIPchgRelaxfeastol	(	SCIP *	scip,
		SCIP_Real	relaxfeastol
	)

sets the primal feasibility tolerance of relaxations

This tolerance value is used by the SCIP core and plugins to tighten then feasibility tolerance on relaxations (especially the LP relaxation) during a solve. It is set to SCIP_INVALID initially, which means that only the feasibility tolerance of the particular relaxation is taken into account. If set to a valid value, however, then this value should be used to reduce the primal feasibility tolerance of a relaxation (thus, use the minimum of relaxfeastol and the relaxations primal feastol).

Precondition

The value of relaxfeastol is reset to SCIP_INVALID when initializing the solve (INITSOL). Therefore, this method can only be called in one of the following stages of the SCIP solving process:

Returns: previous value of relaxfeastol

Parameters

scip	SCIP data structure
relaxfeastol	new primal feasibility tolerance of relaxations

Definition at line 352 of file scip_numerics.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsetSetRelaxfeastol(), and TRUE.

Referenced by applyObbtBilinear().

◆ SCIPmarkLimitChanged()

void SCIPmarkLimitChanged ( SCIP * scip )

marks that some limit parameter was changed

Parameters

scip	SCIP data structure

Definition at line 366 of file scip_numerics.c.

References NULL, and SCIPsetSetLimitChanged().

Referenced by SCIP_DECL_PARAMCHGD().

◆ SCIPinfinity()

SCIP_Real SCIPinfinity ( SCIP * scip )

returns value treated as infinity

Parameters

scip	SCIP data structure

Definition at line 510 of file scip_numerics.c.

References NULL, and SCIPsetInfinity().

Referenced by ObjPricerVRP::add_tour_variable(), addAltLPConstraint(), addAuxiliaryVariablesToMaster(), addBranchingComplementaritiesSOS1(), addBranchingDecisionConss(), addConflictBounds(), addCut(), addExtendedAsymmetricFormulation(), addKnapsackConstraints(), addLocalBranchingConstraint(), addLogicOrConstraints(), addNlrow(), addObjCutoff(), addOrbisackCover(), addOrbisackInequality(), addOrbitopesDynamic(), addPathCuts(), addRegularScholtes(), addRelaxation(), addRow(), addScenarioVarsAndConsToProb(), addSetppcConstraints(), addSlackVars(), addSSTConssOrbitAndUpdateSST(), addStrongSBCsSubgroup(), addSubtourCuts(), addSymmetryInformation(), addSymresackInequality(), addTourCuts(), addTrustRegionConstraints(), addVariable(), addWeakSBCsSubgroup(), aggregateConstraints(), aggregateGeneratedCuts(), aggregation(), analyzeViolation(), applyCliqueFixings(), applyFixings(), applyHeur(), applyObbtBilinear(), applyOptcumulativeFixings(), areCoefsNumericsGood(), assignNextBin(), branchingDecisionInit(), branchingResultDataInit(), buildMod2Matrix(), calcActivityBounds(), calcMaxColActivity(), calcMinColActivity(), calcMinColActResidual(), calculateBounds(), calculateWeightedGain(), calcVarBoundsDominated(), calcVarBoundsDominating(), chgLhs(), chgRhs(), chooseFracVar(), chooseGuidedVar(), computeConvexEnvelopeFacet(), computeCut(), computeFixingOrder(), computeIntercut(), computeLiftingData(), computeProjectionScore(), computeRestrictionToRay(), computeRltCut(), computeRoot(), computeStandardNLPOptimalityCut(), computeVarsCoverSOS1(), computeVertexPolyhedralFacetLP(), computeViolation(), consdataComputePseudoActivity(), consdataCreate(), consdataGetActivity(), consdataGetFeasibility(), consdataRecomputeMaxActivityDelta(), consdataTightenCoefs(), consdataUpdateAddCoef(), constructCompression(), constructCutRow(), convertLongEquality(), CREATE_CONSTRAINT(), createAndAddLinearCons(), createAuxiliaryNonlinearSubproblem(), createAuxVar(), createBlockproblem(), createCapacityRestriction(), createCapacityRestrictionIntvars(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createConstraint(), createConstraints(), createCoverCutsTimepoint(), createCoveringProblem(), createDepthinfo(), createDisaggrRow(), createDisaggrVars(), createKKTComplementarityBinary(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createMasterproblem(), createNAryBranch(), createNLP(), createObjRow(), createOriginalproblem(), createPartitionCut(), createPatternVars(), createPrecedenceCons(), createProbOnlyEdge(), createProbQP(), createProbSimplified(), createProbSimplifiedTest(), createRelaxation(), createRow(), createScenarioData(), createSubproblem(), createSubproblems(), createSubscip(), createSubSCIP(), createVarboundCons(), createVarUbs(), determineBoundForSNF(), dualBoundStrengthening(), dualPresolve(), dualPresolving(), AMPLProblemHandler::EndInput(), enforceCardinality(), enforceConflictgraph(), estimateBivariateQuotient(), estimateUnivariateQuotient(), execmain(), execRelpscost(), executeBranching(), extendToCover(), extractLinearValues(), findBestObjectiveValue(), findDominancePairs(), findInsertionPoint(), findMonoidalQuadRoot(), findRho(), fixVariable(), forbidCover(), fullDualPresolve(), generateAndApplyBendersCuts(), generateAndApplyBendersIntegerCuts(), generateAndApplyBendersNogoodCut(), generateBoundInequalityFromSOS1Nodes(), generateCut(), generateDisjCutSOS1(), generateOddCycleCut(), generateRowCardinality(), generateRowSOS2(), generateZerohalfCut(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinaryProductExprDo(), getBoundConsFromVertices(), getBranchingDecisionStrongbranchSOS1(), getBranchingPrioritiesSOS1(), getClosestVlb(), getClosestVub(), getCurrentRegressionTangentAxisIntercept(), getExprAbsAuxViolation(), getExprAbsOrigViolation(), getGenVBoundsBound(), getGenVBoundsMinActivity(), getGenVBoundsMinActivityConflict(), getImpliedBounds(), getLinearConsSides(), getMaxActivity(), getMaxObjPseudoactivityResidualValue(), getMinActivity(), getMinFeas(), getMinMaxActivityResiduals(), getNewSidesAfterAggregation(), getObjectiveFactor(), getOptimalShiftingValue(), getPotentialContributed(), getTimeLeft(), getVarBoundsOfRow(), getVariable(), getVariableRedcostScore(), handleNlpParam(), initComponent(), initConshdlrData(), initEventhandlerData(), initializeCandsLists(), initLP(), initMatrix(), initWorhp(), isValue(), level2dataCreate(), LOPseparate(), maximalslack(), mod2MatrixTransformContRows(), moveVariable(), newsolCliqueAddRow(), nextBound(), nodepairqueueCreate(), AMPLProblemHandler::OnHeader(), AMPLProblemHandler::OnVarBounds(), parseType(), performStrongbranchWithPropagation(), preprocessConstraintPairs(), presolStuffing(), presolveAddKKTKnapsackConss(), presolveAddKKTLinearCons(), presolveAddKKTLogicorConss(), presolveAddKKTSetppcConss(), prettifyConss(), printAndCons(), propagateCons(), propdataInit(), propIndicator(), rangedRowPropagation(), readBounds(), readCnf(), readCols(), readConstraints(), readIndicators(), readLIBSVM(), readObjective(), readOPBFile(), readQMatrix(), readRows(), readSol(), readSolFile(), readVariables(), readXmlSolFile(), reformulateFactorizedBinaryQuadratic(), relaxVar(), reoptimize(), resetSubproblemObjectiveValue(), runBenders(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCOPY(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSGETPERMSYMGRAPH(), SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPINITSOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EXPR_INTEVALVAR(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRINTEVAL(), SCIP_DECL_HASHKEYEQ(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINITSOL(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NLHDLRSOLLINEARIZE(), SCIP_DECL_NLPICREATEPROBLEM(), SCIP_DECL_NLPISOLVE(), SCIP_DECL_NODESELSELECT(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_PROPINIT(), SCIP_DECL_READERREAD(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_TABLEOUTPUT(), SCIPaddCoefLinear(), SCIPaddConflict(), SCIPaddNlpiProblemNlRows(), SCIPaddSymgraphEdge(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPaggrRowCancelVarWithBound(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPbendersComputeSubproblemLowerbound(), SCIPbendersSolveSubproblem(), SCIPbendersSolveSubproblemLP(), SCIPclassifyConstraintTypesLinear(), SCIPconsGetLhs(), SCIPconsGetRhs(), SCIPcopyConss(), SCIPcreateConsBasicSOC(), SCIPcreateConsBasicSOCNonlinear(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPcreateConsLinear(), SCIPcreateConsOrbitope(), SCIPcreateConsPseudoboolean(), SCIPcreateConsPseudobooleanWithConss(), SCIPcreateConsSOC(), SCIPcreateNlpiProblemFromNlRows(), SCIPcreateSchedulingProblem(), SCIPcreateSymgraph(), SCIPcutGenerationHeuristicCMIR(), SCIPgenerateAndApplyBendersOptCut(), SCIPgetConcurrentGap(), SCIPgetFirstLPLowerboundRoot(), SCIPgetLowerbound(), SCIPgetRowprepRowCons(), SCIPgetRowprepRowConshdlr(), SCIPgetRowprepRowSepa(), SCIPgetRowprepViolation(), SCIPgetUpperbound(), SCIPgetVarLbAtIndex(), SCIPgetVarStrongbranchWithPropagation(), SCIPgetVarUbAtIndex(), SCIPincludeBenderscutInt(), SCIPincludeBranchrulePscost(), SCIPincludeConshdlrBenderslp(), SCIPincludeConshdlrNonlinear(), SCIPincludeHeurDualval(), SCIPincludeHeurFarkasdiving(), SCIPincludeHeurIndicator(), SCIPincludeHeurMpec(), SCIPincludeHeurMultistart(), SCIPincludeHeurProximity(), SCIPincludeHeurSubNlp(), SCIPincludeNlhdlrQuadratic(), SCIPincludeNlhdlrSoc(), SCIPincludePropNlobbt(), SCIPincludeSepaEccuts(), SCIPmatrixCreate(), SCIPmatrixRemoveColumnBounds(), SCIPnlpiOracleAddConstraints(), SCIPnlpiOracleAddVars(), SCIPnlpiOracleChgConsSides(), SCIPnlpiOracleChgVarBounds(), SCIPparseReal(), SCIPperformGenericDivingAlgorithm(), SCIPpruneTree(), SCIPreadOpb(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPsolveProbingRelax(), SCIPsyncstoreGetLastLowerbound(), SCIPsyncstoreGetLastUpperbound(), SCIPsyncstoreStartSync(), SCIPtreemodelSelectCandidate(), SCIPupdateNlpiProblem(), SCIPverifyCircularPatternNLP(), SCIPwriteGms(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), scoreBranchingCandidates(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), selectVarRecursive(), sepaImplBoundCutsSOS1(), separateCons(), separateCoverCutsCons(), separateCoversOrbisack(), separateCuts(), separateIndicators(), separateMcCormickImplicit(), separatePerspective(), separateSCIs(), separateSequLiftedExtendedWeightInequality(), separateSequLiftedMinimalCoverInequality(), separateSupLiftedMinimalCoverInequality(), sepaSubtour(), setupAndSolve(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupProblem(), setupSubScip(), solveBendersSubproblems(), solveComponent(), solvePricingMINLP(), solveSingleRowLP(), sortVariables(), storeSolution(), subtreeSumGapRemoveNode(), switchNext(), tightenBounds(), tightenSides(), tightenVarsBoundsSOS1(), transformColumn(), transformVariable(), tryFillNlhdlrExprDataQuad(), tryUpgradingLogicor(), tryUpgradingSetppc(), updateActivities(), updateAuxiliaryNonlinearSubproblem(), updateBestCandidate(), updateBounds(), updateRowActivities(), updateTransformation(), upgradeLinearSuperindicator(), writeFzn(), and writeOpbConstraints().

◆ SCIPgetHugeValue()

SCIP_Real SCIPgetHugeValue ( SCIP * scip )

returns the minimum value that is regarded as huge and should be handled separately (e.g., in activity computation)

Parameters

scip	SCIP data structure

Definition at line 547 of file scip_numerics.c.

References NULL, and SCIPsetGetHugeValue().

Referenced by addCut(), addCutPool(), computeRelaxedLowerbound(), computeRelaxedUpperbound(), getDualBranchscore(), getMaxActivity(), getMinActivity(), resolvePropagation(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NLHDLRSOLLINEARIZE(), and SCIPcalcStrongCG().

◆ SCIPisEQ()

SCIP_Bool SCIPisEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if values are in range of epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 445 of file scip_numerics.c.

References NULL, and SCIPsetIsEQ().

Referenced by addAltLPColumn(), addAltLPConstraint(), addAltLPRow(), addCoefTerm(), addConflictBounds(), addConflictFixedVars(), addConflictReasonVars(), addExprsViolScore(), addExpSecant(), addLocalBranchingConstraint(), addLogSecant(), addLowerBound(), addOneRow(), addPathCuts(), addSplitcons(), addSubtourCuts(), addSymmetryInformation(), addTourCuts(), addUpperBound(), adjustCutoffbound(), aggregateConstraints(), aggregateNextRow(), aggregateVariables(), analyseVarOnoffBounds(), analyzeConflictLowerbound(), analyzeConflictUpperbound(), applyFixings(), applyObbt(), applySeparation(), areBoundsChanged(), assignVars(), branchOnBin(), buildMod2Matrix(), calcGap(), calcPscostQuot(), calculateAlternatives(), cancelCol(), cancelRow(), catchEvent(), checkConsnames(), checkEqualObjective(), checkExec(), checkIISlocal(), checkParallelObjective(), checkPartialObjective(), checkSignomialBounds(), checkSolution(), checkSystemGF2(), chgLhs(), chgRhs(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), collectBranchingCandidates(), combineCols(), compareNodes(), componentSetupWorkingSol(), computeBilinEnvelope2(), computeConvexEnvelopeFacet(), computeCut(), computeCutsAbs(), computeEstimatorsTrig(), computeImpliedEst(), computeImpliedLct(), computeInitialCutsTrig(), computeLeftSecantSin(), computeProjectionScore(), computeRelaxedLowerbound(), computeRelaxedUpperbound(), computeRightSecantSin(), computeRltCut(), computeSecant(), computeSignpowerRoot(), computeSolTangentSin(), computeSVTS(), computeVarRatio(), computeVertexPolyhedralFacetLP(), consdataCreate(), consdataCreateRedundant(), consdataFree(), consdataPrint(), consdataTightenCoefs(), consdataUpdateDelCoef(), consPrintConsSol(), constructCompression(), constructValidSolution(), convertBinaryEquality(), convertBoundToInt(), convertEquality(), convertLongEquality(), convertUnaryEquality(), correctLocksAndCaptures(), createAltLPColumn(), createAndAddLinearCons(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createCGMIPprimalsols(), createSubproblem(), createSubscip(), DECL_TIMESERIESUPDATE(), detectDominatingVlbs(), detectDominatingVubs(), detectParallelCols(), detectRedundantConstraints(), determineBestBounds(), determineBoundForSNF(), determineTotalNumberLinearConss(), displayRelevantStats(), dropEvent(), dualBoundStrengthening(), dualPresolve(), estimateBivariateQuotient(), estimateConvexSecant(), estimateUnivariateQuotient(), evaluateAggrCand(), extractCapacityRows(), extractCliques(), extractCycle(), extractFlowRows(), findAggregation(), findDominancePairs(), findFixings(), findNonDominatedVars(), findRho(), fixAndPropagate(), fixMatchingSolutionValues(), fixVariables(), forbidFixation(), fullDualPresolve(), getBinVarsRepresentatives(), getGenVBoundsMinActivityConflict(), getRandomVariable(), getReward(), getScore(), getScoreLikeCoefdiving(), getScoreOfFarkasDiving(), getVariablePscostScore(), handleNlpParam(), impliesVlbPrecedenceCondition(), improvePoint(), initCurrent(), isBinaryProduct(), isCandidate(), isEvenOperator(), isIntervalBetter(), isNonstandardPerm(), isPartition(), isRangedRow(), isSingleLockedCand(), nodeGetUctScore(), normalizeCons(), parseConstantArrayAssignment(), parseValue(), performBranchingNoSol(), performBranchingSol(), performDualfix(), preprocessConstraintPairs(), presolRoundIndicator(), presolStuffing(), presolveImplint(), presolveSingleLockedVars(), prettifyConss(), printActiveVariables(), printBoundSection(), printLinearCons(), printNonLinearCons(), printNonlinearCons(), printQuadraticCons(), printRangeSection(), printRowType(), processRealBoundChg(), propagateCons(), propagateRedcostVar(), propagateVbounds(), propIndicator(), rangedRowPropagation(), raysAreDependent(), readConstraints(), readRanges(), registerBranchingCandidates(), registerBranchingCandidatesAllUnfixed(), removeZeros(), removeZerosQuad(), resolveGenVBoundPropagation(), resolvePropagation(), reuseSolution(), reversePropBinarySearch(), rowprepCleanupIntegralCoefs(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSGETPERMSYMGRAPH(), SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPRINT(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRSIMPLIFY(), SCIP_DECL_HASHKEYEQ(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRDETECT(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPRESPROP(), SCIP_DECL_READERWRITE(), SCIP_DECL_SEPAEXECLP(), SCIPaddCoefPseudoboolean(), SCIPaddIneqBilinear(), SCIPanalyzeDeductionsProbing(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPbendersSetupSubproblem(), SCIPchgVarObjProbing(), SCIPclassifyConstraintTypesLinear(), SCIPcomputeBilinEnvelope2(), SCIPcomputeSymgraphColors(), SCIPcreateConsOrbitope(), SCIPcreateFiniteSolCopy(), SCIPcutGenerationHeuristicCMIR(), SCIPmatrixGetParallelCols(), SCIPmatrixGetParallelRows(), SCIPprocessRowprepNonlinear(), SCIPpropagateProbing(), SCIPsnprintfProbingStats(), SCIPsymEQ(), SCIPupgradeConsLinear(), SCIPvalidateSolve(), SCIPwriteGms(), SCIPwriteMps(), selectBranchVar(), selectShifting(), selectVarRecursive(), separateCuts(), separateRltCuts(), setupAggregationData(), setupAndSolveSubscipRapidlearning(), simplifyInequalities(), solveComponent(), solveSingleRowLP(), storeSuitableRows(), strengthenVarbounds(), subtreeSumGapUpdate(), tightenAuxVarBounds(), tightenBounds(), tightenCoefs(), tightenVariables(), tightenVarsBoundsSOS1(), transformColumn(), transformNonIntegralRow(), tryAddGadgetSquaredDifference(), tryFillNlhdlrExprDataQuad(), tryUpgradingLogicor(), tryUpgradingXor(), updateBestCandidate(), updateDualVector(), updateFirstRow(), updateLogRegression(), updateObjectiveVector(), updateObjUpperbound(), updateVariableRounding(), upgradeConss(), varIsCenteredAt0(), varIsSemicontinuous(), and writeFzn().

◆ SCIPisLT()

SCIP_Bool SCIPisLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than epsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 458 of file scip_numerics.c.

References NULL, and SCIPsetIsLT().

Referenced by addBilinearTermToCut(), addCoef(), addConflictBounds(), addLowerBound(), addNodesInformation(), addScenarioVarsAndConsToProb(), addSplitcons(), alwaysLTshiftedVars(), analyseVarOnoffBounds(), analyzeConflictUpperbound(), applyDomainReductions(), assignNextBin(), branch(), branchOnVar(), buildMod2Matrix(), calcPscostQuot(), checkLeavesBelowIncumbent(), checkSetupTolerances(), chgLhs(), chgProbingBound(), chgRhs(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), choosePscostVar(), chooseVeclenVar(), combineCols(), compareConsnodes(), compareNodes(), compareSymgraphs(), compareVars(), compareVarsSignedPerm(), compensateVarLock(), componentSetupWorkingSol(), computeRevPropIntervalSin(), computeSCTable(), consdataTightenCoefs(), constructValidSolution(), createSubscip(), detectDominatingVlbs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualBoundStrengthening(), dualPresolve(), dualPresolving(), ensureScoresPresent(), evaluateLiftingFunction(), execRelpscost(), findBestUb(), findComponents(), findDominancePairs(), findNewBounds(), findNonDominatedVars(), generateZerohalfCut(), getAlphaAndBeta(), getFixVal(), getPartitionCovervars(), getScore(), impliesVlbPrecedenceCondition(), isPointFeasible(), l2BallProjection(), linfBallProjection(), maxCircles(), maximizeObjectiveSymresackStrict(), mod2matrixPreprocessRows(), normalizeCons(), performDualfix(), performRandRounding(), performStrongbranchWithPropagation(), predBndStr(), preprocessConstraintPairs(), prettifyConss(), processBinvarFixings(), processRealBoundChg(), propagateCons(), propagateCutoffboundVar(), propagateLowerBoundVar(), propagateSelfReflectionVar(), propagateUpperBoundSymVar(), rangedRowPropagation(), rangedRowSimplify(), readBounds(), releaseNodeFromDepthInfo(), reoptimize(), resolveGenVBoundPropagation(), reversePropBinarySearch(), rowprepCleanupImproveCoefrange(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSEXITPRE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HASHKEYEQ(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRINTEVAL(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddIneqBilinear(), SCIPaddRow(), SCIPapplyProbingVar(), SCIPbendersSetupSubproblem(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPchgVarUbLazy(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPmakeSOS1sFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPshrinkDisjunctiveVarSet(), SCIPsymLT(), SCIPtreemodelSelectCandidate(), SCIPupdateDistributionScore(), separateCons(), separateCuts(), setupProblem(), simplifyInequalities(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), solveSingleRowLP(), startProbing(), tightenBounds(), tightenCoefs(), tightenVarBounds(), tightenVariables(), tightenVarUb(), transformAndSolve(), transformNonIntegralRow(), tryFillNlhdlrExprDataQuad(), updateBestCandidate(), and updateObjUpperbound().

◆ SCIPisLE()

SCIP_Bool SCIPisLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than epsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 471 of file scip_numerics.c.

References NULL, and SCIPsetIsLE().

Referenced by addBilinearTermToCut(), addConstraint(), addExpSecant(), addLogLinearization(), addLogSecant(), addNewLocks(), addSplitcons(), addUpperBound(), aggregateConstraints(), analyzeGenVBoundConflict(), applyBoundChgs(), applyDomainReductions(), applyProbingVar(), assignVars(), checkExec(), checkImplicsApplied(), checkOrigPbCons(), checkSystemGF2(), chgLhs(), chgProbingBound(), chgRhs(), chooseDoubleVar(), collectNonBinaryImplicationData(), combineCols(), compensateVarLock(), computeEstimatorsTrig(), computeInitialCutsTrig(), computeLeftSecantSin(), computeRightSecantSin(), computeVertexPolyhedralFacetUnivariate(), consdataCreateRedundant(), consdataGetReliableResidualActivity(), consdataPrint(), consdataTightenCoefs(), convertLongEquality(), correctLocksAndCaptures(), createBlockproblem(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), detectDominatingVubs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualBoundStrengthening(), dualPresolve(), enumeratePatterns(), estimateBivariate(), estimateUnivariate(), evaluateLiftingFunction(), filterCands(), filterPoints(), findBestUb(), findFixings(), findUplockAggregations(), getAlphaAndBeta(), getFixingValue(), getFixVal(), getGMIFromRow(), getImpliedBounds(), getNCircles(), getNewSidesAfterAggregation(), hasBetterRatio(), heurExec(), impliesVlbPrecedenceCondition(), indicatorVarIsInteresting(), initCurrent(), initsepaBoundInequalityFromCardinality(), isEvenOperator(), isOverlapping(), l1BallProjection(), lockRoundingAndCons(), normalizeCons(), performDualfix(), performStrongbranchWithPropagation(), predBndStr(), preprocessConstraintPairs(), presolStuffing(), processNLPSol(), projectVbd(), propagateCons(), propagateLowerbound(), rangedRowPropagation(), rangedRowSimplify(), removeOldLocks(), resolveGenVBoundPropagation(), reversePropBinarySearch(), sampleRandomPoints(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRMONOTONICITY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddBilinMcCormick(), SCIPaddSquareSecant(), SCIPanalyzeDeductionsProbing(), SCIPapplyProbingVar(), SCIPclassifyConstraintTypesLinear(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcutsTightenCoefficients(), SCIPprintSolutionStatistics(), SCIPseparateRelaxedKnapsack(), SCIPsymLE(), scoring(), searchEcAggrWithMIP(), selectNextDiving(), separateCuts(), setSymmetryData(), setupAndSolveSubscipRapidlearning(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), solveSingleRowLP(), solveSubNLP(), subtreeSumGapRemoveNode(), tightenBounds(), tightenCoefs(), tightenVarBounds(), tightenVarBoundsEasy(), transformVariable(), tryFillNlhdlrExprDataQuad(), tryUpgradingSetppc(), unlockRoundingAndCons(), updateBestCandidate(), updateDualBounds(), updateTransformation(), upgradeConss(), and upgradeLinearSuperindicator().

◆ SCIPisGT()

SCIP_Bool SCIPisGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than epsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 484 of file scip_numerics.c.

References NULL, and SCIPsetIsGT().

Referenced by addBilinearTermToCut(), addBranchingComplementaritiesSOS1(), addCoef(), addConflictBounds(), addGenVBound(), addPathCuts(), addRelaxation(), addSplitcons(), addSubtourCuts(), addTourCuts(), aggregateNextRow(), analyseVarOnoffBounds(), analyzeConflictLowerbound(), applyDomainReductions(), applyNlobbt(), applyProbingVar(), assignNextBin(), branchOnVar(), calcPscostQuot(), canGTshiftedVars(), checkCons(), checkDivingCandidates(), checkPackingPartitioningOrbitopeSolution(), checkSetupTolerances(), checkVarbound(), chgLhs(), chgProbingBound(), chgRhs(), chooseCoefVar(), chooseDoubleVar(), chooseFracVar(), chooseGuidedVar(), choosePscostVar(), chooseVeclenVar(), combineCols(), compareConsnodes(), compareNodes(), compareSymgraphs(), compareVars(), compareVarsSignedPerm(), compensateVarLock(), computeLiftingData(), computeNextAdjacency(), computePosRingCircle(), computeRevPropIntervalSin(), computeSolTangentSin(), computeSVTS(), consdataCreate(), consdataTightenCoefs(), convertLongEquality(), createSubscip(), cutsTransformMIR(), cutTightenCoefs(), cutTightenCoefsQuad(), detectDominatingVubs(), determineBestBounds(), determineBoundForSNF(), determineVariableFixings(), dualBoundStrengthening(), dualPresolve(), enfopsPackingPartitioningOrbitopeSolution(), enumeratePatterns(), evaluateLiftingFunction(), execRelpscost(), extractCycle(), filterWithDynamicParallelism(), findBestLb(), findInsertionPoint(), findNewBounds(), findNonDominatedVars(), generateLiftedFlowCoverCut(), generateZerohalfCut(), getAlphaAndBeta(), getFixVal(), getNCircles(), getObjectiveFactor(), getOptimalShiftingValue(), getScore(), getScoreLikeCoefdiving(), getVarRank(), impliesVlbPrecedenceCondition(), improvePoint(), isPointFeasible(), l1BallProjection(), l2BallProjection(), linfBallProjection(), maximizeObjectiveSymresackCriticalEntry(), maximizeObjectiveSymresackStrict(), normalizeCons(), performRandRounding(), performStrongbranchWithPropagation(), preprocessConstraintPairs(), presolStuffing(), printRangeSection(), printRowType(), processRealBoundChg(), propagateCons(), rangedRowPropagation(), rangedRowSimplify(), readBounds(), reformRowprep(), releaseNodeFromDepthInfo(), resolveGenVBoundPropagation(), reverseProp(), roundPartition(), rowprepCleanupImproveCoefrange(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRMONOTONICITY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRINTEVAL(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_RELAXEXEC(), SCIPaddRow(), SCIPapplyProbingVar(), SCIPbendersSetupSubproblem(), SCIPchgVarLbLazy(), SCIPcopyConsLinear(), SCIPcutsTightenCoefficients(), SCIPheurPassSolAddSol(), SCIPheurPassSolTrySol(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPshrinkDisjunctiveVarSet(), SCIPsymGT(), SCIPtreemodelSelectCandidate(), SCIPupdateDistributionScore(), selectVarRecursive(), separateCons(), separateCuts(), separatePerspective(), simplifyInequalities(), singletonColumnStuffing(), solveAndEvalSubscip(), solvePricingHeuristic(), startProbing(), storeAggrFromMIP(), tightenCoefs(), tightenSides(), tightenVarBounds(), tightenVarBoundsEasy(), tightenVariables(), tightenVarLb(), transformAndSolve(), transformNonIntegralRow(), tryFillNlhdlrExprDataQuad(), updateBestCandidate(), and updateSubproblemCutConstant().

◆ SCIPisGE()

SCIP_Bool SCIPisGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than epsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 497 of file scip_numerics.c.

References NULL, and SCIPsetIsGE().

Referenced by addBilinearTermToCut(), addNodesInformation(), addSplitcons(), aggregateGeneratedCuts(), analyzeGenVBoundConflict(), applyDomainReductions(), applyFixings(), applyProbingVar(), assignVars(), checkImplicsApplied(), checkSystemGF2(), checkVarbound(), chgProbingBound(), collectNonBinaryImplicationData(), combineCols(), computeCut(), computeLeftSecantSin(), computePosCircleCircle(), computePosRingCircle(), computeSolTangentSin(), computeSVTS(), computeVarRatio(), consdataCreateRedundant(), consdataTightenCoefs(), convertLongEquality(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), cutsTransformMIR(), cutTightenCoefsQuad(), detectDominatingVlbs(), dualPresolve(), dualPresolving(), estimateBivariate(), estimateUnivariate(), execRelpscost(), executeBranching(), executeBranchingRecursive(), filterWithDynamicParallelism(), findBestLb(), findDominancePairs(), findDownlockAggregations(), findFixings(), generateAndApplyBendersCuts(), generateLiftedFlowCoverCut(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getFixingValue(), getImpliedBounds(), getPartitionCovervars(), identifySourcesTargets(), impliesVlbPrecedenceCondition(), initCurrent(), isNlobbtApplicable(), isVlb(), isVub(), maximizeObjectiveSymresackStrict(), nodeGetUctScore(), performLPRandRounding(), performLPSimpleRounding(), performStrongbranchWithPropagation(), preprocessConstraintPairs(), prettifyConss(), propagateCons(), propagateCutoffbound(), propagateCutoffboundGlobally(), rangedRowPropagation(), rangedRowSimplify(), resolveGenVBoundPropagation(), reuseSolution(), reversePropBinarySearch(), roundPartition(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONCSOLVERSYNCREAD(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRMONOTONICITY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPPRESOL(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_TABLEOUTPUT(), SCIPaddBilinMcCormick(), SCIPaddIneqBilinear(), SCIPanalyzeDeductionsProbing(), SCIPapplyHeurDualval(), SCIPapplyProbingVar(), SCIPclassifyConstraintTypesLinear(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPgetVarStrongbranchWithPropagation(), SCIPperformGenericDivingAlgorithm(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPsolveDiveLP(), SCIPsolveKnapsackExactly(), SCIPsymGE(), SCIPtryStrongbranchLPSol(), SCIPupdateNodeLowerbound(), SCIPverifyCircularPatternHeuristic(), scoreContainerSetScore(), selectNextDiving(), selectVarMultAggrBranching(), selectVarRecursive(), separateCuts(), setSymmetryData(), simplifyInequalities(), singletonColumnStuffing(), solveAndEvalSubscip(), solveComponent(), solveProbingLP(), tightenCoefs(), updateBestCandidate(), updateMuSteplengthParam(), and upgradeLinearSuperindicator().

◆ SCIPisInfinity()

SCIP_Bool SCIPisInfinity	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is (positive) infinite

Parameters

scip	SCIP data structure
val	value to be compared against infinity

Definition at line 521 of file scip_numerics.c.

References NULL, and SCIPsetIsInfinity().

Referenced by addAltLPColumn(), addAltLPConstraint(), addAltLPRow(), addBilinearTermToCut(), addBranchingComplementaritiesSOS1(), addCoef(), addCols(), addConflictBounds(), addConstraint(), addCut(), addCuts(), addExpLinearization(), addExprsViolScore(), addExpSecant(), addFacetToCut(), addGenVBound(), addLinearTermToCut(), addLocalbranchingConstraintAndObjcutoff(), addLocks(), addLogLinearization(), addLogSecant(), addNewLocks(), addObjcut(), addObjCutoff(), addOneRow(), addRelaxation(), addRltTerm(), addRow(), addRows(), addRowToCut(), addSignpowerRefpoints(), addSlackVars(), addSymmetryInformation(), addTangentRefpoints(), aggregateConstraints(), aggregateGeneratedCuts(), aggregateNextRow(), aggregateVariables(), aggregation(), analyzeConflictRangedRow(), analyzeGenVBoundConflict(), analyzeViolation(), applyBoundHeur(), applyFixings(), applyGenVBound(), applyOptcumulative(), applyOrbitalBranchingPropagations(), applyOrbitalReductionPart(), applyRepair(), applyVboundsFixings(), branchingIntegralFirst(), buildMod2Matrix(), buildPowEstimator(), calcActivityBounds(), calcBranchScore(), calcGap(), calcMaxColActivity(), calcMaxObjPseudoactivity(), calcMinColActivity(), calcMinColActResidual(), calcShiftVal(), calculateAlternatives(), calculateBounds(), calculateMinvalAndMaxval(), calcVarBoundsDominated(), calcVarBoundsDominating(), cancelCol(), cancelRow(), canonicalizeConstraints(), checkArraySizesGLS(), checkArraySizesHeur(), checkCands(), checkCons(), checkConsQuadraticProblem(), checkLogCriterion(), checkOptimalSolution(), checkOrigPbCons(), checkParallelObjective(), checkRedundancySide(), checkSignomialBounds(), checkSubproblemConvexity(), chgCoeffWithBound(), chgLhs(), chgQuadCoeffWithBound(), chgRhs(), choosePscostVar(), chooseRefpointsPow(), combineCols(), compareNodes(), compensateVarLock(), computeCut(), computeCutsAbs(), computeHyperplaneThreePoints(), computeIntercut(), computeIntersectionPoint(), computeLeftSecantSin(), computeLeftTangentSin(), computeLiftingData(), computeMaxViolation(), computeMIRForOptimalityCut(), computeNegCutcoefs(), computeRevPropIntervalSin(), computeRightSecantSin(), computeRightTangentSin(), computeRltCut(), computeSecant(), computeStandardIntegerOptCut(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), computeStandardNLPFeasibilityCut(), computeStandardNLPOptimalityCut(), computeStrengthenedIntercut(), computeSVTS(), computeVertexPolyhedralFacetLP(), computeVertexPolyhedralFacetUnivariate(), computeViolation(), consdataComputePseudoActivity(), consdataCreate(), consdataGetActivity(), consdataGetActivityResiduals(), consdataGetGlbActivityResiduals(), consdataGetReliableResidualActivity(), consdataPrint(), consdataRecomputeGlbMaxactivity(), consdataRecomputeGlbMinactivity(), consdataRecomputeMaxactivity(), consdataRecomputeMaxActivityDelta(), consdataRecomputeMinactivity(), consdataTightenCoefs(), consdataUpdateActivities(), consdataUpdateActivitiesGlbLb(), consdataUpdateActivitiesGlbUb(), consdataUpdateActivitiesLb(), consdataUpdateActivitiesUb(), consdataUpdateAddCoef(), consPrintConsSol(), constructCutRow(), constructSNFRelaxation(), convertLongEquality(), correctLocksAndCaptures(), createAltLPColumn(), createAndAddLinearCons(), createBlockproblem(), createCGMIPprimalsols(), createGenVBound(), createKKTComplementarityBounds(), createKKTComplementarityLinear(), createKKTDualCons(), createLinking(), createLPWithHardCuts(), createLPWithSoftCuts(), createNLP(), createNormalizedKnapsack(), createProjRow(), createRows(), createSubproblem(), createSubscip(), cutsRoundMIR(), cutsRoundStrongCG(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutsTransformKnapsackCover(), cutsTransformMIR(), cutsTransformStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), DECL_TIMESERIESUPDATE(), detectHiddenProducts(), detectProductsUnconditional(), detectRedundantConstraints(), detectSocQuadraticSimple(), determineBestBounds(), determineBound(), determineBoundForSNF(), determineLimits(), determineTotalNumberLinearConss(), determineVariableFixings(), determineVariableFixingsDecomp(), displayRelevantStats(), doPricing(), doSeachEcAggr(), doSolveSubMIP(), dualPresolve(), enforceExpr(), estimateConvexSecant(), estimateHyperbolaMixed(), estimateHyperbolaPositive(), estimateUnivariate(), estimateVertexPolyhedral(), estimateVertexPolyhedralProduct(), evalFunctionGradient(), evalFunctionValue(), evalPhiAtRay(), evaluateCutNumerics(), evaluateLiftingFunction(), extractCapacityRows(), extractCliques(), extractFlowRows(), extractLinearValues(), filterCands(), filterExistingLP(), findAndStoreEcAggregations(), findDownlockAggregations(), findFixings(), findMonoidalQuadRoot(), findPointPosition(), findRho(), findUnlockedLinearVar(), findUplockAggregations(), fixNonNeighborhoodVariables(), fixVariable(), forwardPropExpr(), fullDualPresolve(), generateAndApplyBendersCuts(), generateAndApplyBendersIntegerCuts(), generateAverageNBRay(), generateAverageRay(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateCut(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), generateRowCardinality(), generateRowSOS2(), generateZerohalfCut(), getActivityResidualsLowerBound(), getActivityResidualsUpperBound(), getBinVarIdxInDownlockRow(), getBinVarIdxInUplockRow(), getBoundConsFromVertices(), getBranchingPrioritiesSOS1(), getClosestVlb(), getClosestVub(), getConsRelViolation(), getCopyMemlimit(), getCopyTimelimit(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getDomainCenter(), getFilterCoef(), getGenVBoundsBound(), getGenVBoundsMinActivity(), getGenVBoundsMinActivityConflict(), getGMIFromRow(), getImpliedBounds(), getLinearCoeffs(), getMaxActivitySingleRowWithoutCol(), getMaxObjPseudoactivityResidual(), getMaxObjPseudoactivityResidualValue(), getMinActivitySingleRowWithoutCol(), getMinColActWithoutRow(), getMinMaxActivityResiduals(), getNewSidesAfterAggregation(), getObjectiveFactor(), getOptimalShiftingValue(), getPotential(), getPotentialContributed(), getRelDistance(), getReward(), getTimeLeft(), getVarBoundsOfRow(), getVariableRedcostScore(), handleNewVariableCardinality(), handleNewVariableSOS1(), handleNlpParam(), hasUnfixedSCIndicator(), improvePoint(), initializeCandsLists(), initMatrix(), initsepaBoundInequalityFromCardinality(), initSolve(), initWorhp(), intEvalQuotient(), invertCommodity(), isCandidate(), isFiniteNonnegativeIntegral(), isNlobbtApplicable(), isPossibleToComputeCut(), isRangedRow(), isSingleLockedCand(), isZero(), lockRounding(), lockRoundingAndCons(), mod2MatrixTransformContRows(), modifyAndPackCut(), nodeGetSolvalBinaryBigMSOS1(), nodeGetUctScore(), nodepairqueueCreate(), normalizeCons(), AMPLProblemHandler::OnConBounds(), performBoundSubstitution(), performBoundSubstitutionSimple(), performDualfix(), performStrongbranchWithPropagation(), predBndStr(), preprocessConstraintPairs(), presolStuffing(), presolve(), presolveAddKKTLinearCons(), presolveMergeConss(), presolveRedundantConss(), presolveSingleLockedVars(), prettifyConss(), printBounds(), printBoundSection(), printDualSol(), printIndicatorCons(), printLinearCons(), printLongStatistics(), printNonLinearCons(), printNonlinearCons(), printQuadraticCons(), printRangeSection(), printRhsSection(), printRow(), printRowType(), printShortStatistics(), processHashlists(), processNlRow(), propagateCons(), propagateCutoffbound(), propagateCutoffboundGlobally(), propagateCutoffboundVar(), propagateLowerbound(), propagateLowerboundBinvar(), propagateLowerboundVar(), propagateVbounds(), propConss(), propIndicator(), proposeFeasibleSolution(), rangedRowPropagation(), rangedRowSimplify(), rayInRecessionCone(), readBinaries(), readBounds(), readCols(), readConstraints(), readIndicators(), readRanges(), readRhs(), registerBranchingCandidates(), relaxVar(), removeOldLocks(), removeZeros(), removeZerosQuad(), resolvePropagation(), retransformVariable(), rowCalculateGauss(), rowprepCleanupImproveCoefrange(), rowprepCleanupIntegralCoefs(), rowprepCleanupScaledown(), rowprepCleanupScaleup(), runBenders(), sampleRandomPoints(), scaleCons(), scaleConsSides(), SCIP_DECL_BRANCHEXECEXT(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSINITPRE(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPRINT(), SCIP_DECL_CONSPROP(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPR_INTEVALVAR(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_EXPRPARSE(), SCIP_DECL_EXPRSIMPLIFY(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NLPICHGCONSSIDES(), SCIP_DECL_NLPICHGVARBOUNDS(), SCIP_DECL_NLPISOLVE(), SCIP_DECL_NODESELCOMP(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPEXEC(), SCIP_DECL_PROPPRESOL(), SCIP_DECL_PROPRESPROP(), SCIP_DECL_RELAXEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPaddBilinLinearization(), SCIPaddBilinMcCormick(), SCIPaddCoefLinear(), SCIPaddConstantQuadratic(), SCIPaddNlpiProblemNlRows(), SCIPaddRow(), SCIPaddSquareLinearization(), SCIPaddSquareSecant(), SCIPaddVarImplication(), SCIPaggrRowAddCustomCons(), SCIPaggrRowAddRow(), SCIPaggrRowCancelVarWithBound(), SCIPapplyHeurDualval(), SCIPapplyHeurSubNlp(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPchgVarLb(), SCIPchgVarLbGlobal(), SCIPchgVarLbNode(), SCIPchgVarLbProbing(), SCIPchgVarObj(), SCIPchgVarObjProbing(), SCIPchgVarUb(), SCIPchgVarUbGlobal(), SCIPchgVarUbNode(), SCIPchgVarUbProbing(), SCIPclassifyConstraintTypesLinear(), SCIPcleanupRowprep(), SCIPcleanupRowprep2(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcomputeFacetVertexPolyhedralNonlinear(), SCIPcomputeSymgraphColors(), SCIPcopyConsLinear(), SCIPcopySymgraph(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPcreateConsLinear(), SCIPcreateConsLinking(), SCIPcreateConsOrbitope(), SCIPcreateConsPseudoboolean(), SCIPcreateConsPseudobooleanWithConss(), SCIPcreateFiniteSolCopy(), SCIPcreateNlpiProblemFromNlRows(), SCIPcreateVar(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPgetExprRelAuxViolationNonlinear(), SCIPgetRowprepViolation(), SCIPgetSymActiveVariables(), SCIPgetVarLbAtIndex(), SCIPgetVarUbAtIndex(), SCIPinferVarLbCons(), SCIPinferVarLbProp(), SCIPinferVarUbCons(), SCIPinferVarUbProp(), SCIPmakeIndicatorFeasible(), SCIPmatrixRemoveColumnBounds(), SCIPnlpiOracleEvalJacobian(), SCIPnlpiOraclePrintProblem(), SCIPnlpiOraclePrintProblemGams(), SCIPnlpiOracleSetObjective(), SCIPprintSolutionStatistics(), SCIPprintStage(), SCIProwCalcProbability(), SCIPscaleupRowprep(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackApproximatelyLT(), SCIPsymEQ(), SCIPsymGE(), SCIPsymGT(), SCIPsymLE(), SCIPsymLT(), SCIPtightenExprIntervalNonlinear(), SCIPtightenVarLb(), SCIPtightenVarLbGlobal(), SCIPtightenVarUb(), SCIPtightenVarUbGlobal(), SCIPtransformProb(), SCIPtreemodelSelectCandidate(), SCIPvalidateSolve(), SCIPvarCalcDistributionParameters(), SCIPwriteGms(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), scoreBranchingCandidates(), scoring(), selectBranchVar(), selectCandidateUsingSampling(), selectCandidateUsingSVTS(), selectShifting(), sepaImplBoundCutsSOS1(), separateCons(), separateCuts(), separateMcCormickImplicit(), separatePerspective(), setAndUpdateCorePoint(), setSubscipLimits(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscip(), setupAndSolveSubscipCrossover(), setupAndSolveSubscipMutation(), setupSubScip(), setVarToNearestBound(), simplifyInequalities(), singletonColumnStuffing(), solveClassification(), solveComponent(), solveCumulative(), solveIndependentCons(), solveLagromoryLP(), solveLPWithHardCuts(), solveMinIISC(), solveNlp(), solveSingleRowLP(), solveSubNLP(), solveSubproblem(), solveSubscip(), storeNonlinearConvexNlrows(), subtreeSumGapComputeFromScratchEfficiently(), subtreeSumGapUpdate(), TCLIQUE_NEWSOL(), termIsConvex(), tightenBounds(), tightenCoefs(), tightenSides(), tightenVarBounds(), tightenVarBoundsEasy(), tightenVariables(), tightenVarLb(), tightenVarsBoundsSOS1(), tightenVarUb(), transformAndSolve(), transformColumn(), transformNonIntegralRow(), transformValue(), transformVariable(), tryAddGadgetBilinearProductSignedPerm(), tryAddGadgetSquaredDifference(), tryFillNlhdlrExprDataQuad(), tryFixVar(), unboundedAuxiliaryVariables(), unlockRounding(), unlockRoundingAndCons(), updateActivities(), updateBestCandidate(), updateCutoffbound(), updateDualBounds(), updateImplicationGraphSOS1(), updateLagrangianValue(), updateObjectiveVector(), updateObjUpperbound(), updateRowActivities(), updateSlacks(), updateSubgradient(), updateSubproblemLowerbound(), updateTransformation(), updateViolations(), updateWeightsTCliquegraph(), upgradeConss(), upgradeIndicatorSuperindicator(), upgradeLinearSuperindicator(), varIsCenteredAt0(), varProcessBoundChanges(), wrapperDins(), wrapperRins(), and writeFzn().

◆ SCIPisHugeValue()

SCIP_Bool SCIPisHugeValue	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is huge and should be handled separately (e.g., in activity computation)

Parameters

scip	SCIP data structure
val	value to be checked whether it is huge

Definition at line 533 of file scip_numerics.c.

References NULL, and SCIPsetIsHugeValue().

Referenced by applyObbtBilinear(), areCoefsNumericsGood(), checkCons(), computeRestrictionToRay(), consdataGetActivityResiduals(), consdataGetGlbActivityResiduals(), consdataGetReliableResidualActivity(), consdataRecomputeGlbMaxactivity(), consdataRecomputeGlbMinactivity(), consdataRecomputeMaxactivity(), consdataRecomputeMinactivity(), consdataUpdateActivities(), convertLongEquality(), estimateBivariate(), estimateUnivariate(), fullDualPresolve(), getDualBranchscore(), improvePoint(), prepareCons(), rangedRowPropagation(), SCIP_DECL_PRESOLEXEC(), SCIPscaleupRowprep(), selectShifting(), separateCuts(), simplifyInequalities(), solveBilinearLP(), and updateBestCandidate().

◆ SCIPisZero()

SCIP_Bool SCIPisZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range epsilon of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 558 of file scip_numerics.c.

References NULL, and SCIPsetIsZero().

Referenced by addAltLPColumn(), addAltLPConstraint(), addBilinearTermToCut(), addCoef(), addCoefTerm(), addCols(), addConflictBounds(), addFacetToCut(), addFlowrowToCommodity(), addGenVBound(), addLinearTermToCut(), addObjcut(), addRltTerm(), addRow(), addRows(), addSymmetryInformation(), adjustCutoffbound(), aggregateConstraints(), aggregateGeneratedCuts(), aggregation(), applyFixings(), applyRepair(), branchOnBin(), buildConvexCombination(), buildMod2Matrix(), calcActivityBounds(), calcEfficacy(), calcEfficacyDenseStorageQuad(), calcEfficacyNormQuad(), calculateShift(), calcVarBoundsDominated(), calcVarBoundsDominating(), cancelCol(), cancelRow(), catchObjEvent(), checkCons(), checkDivingCandidates(), checkEqualObjective(), checkExec(), checkParallelObjective(), checkSolution(), chgCoefPos(), chgLhs(), chgRhs(), collectMaxactVar(), collectMinactImplicVar(), collectMinactImplicVars(), collectMinactVar(), collectNonBinaryVBoundData(), combineCols(), componentSetupWorkingSol(), computeCut(), computeHyperbolaRoot(), computeLeftSecantSin(), computeMonoidalQuadCoefs(), computePosRingCircle(), computeRestrictionToLine(), computeRestrictionToRay(), computeRightSecantSin(), computeSignpowerRoot(), computeSolTangentSin(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), computeStandardNLPFeasibilityCut(), computeStandardNLPOptimalityCut(), computeStrengthenedIntercut(), computeVarRatio(), computeVertexPolyhedralFacetBivariate(), consdataCreate(), consdataFree(), consdataGetReliableResidualActivity(), consdataTightenCoefs(), consdataUpdateAddCoef(), consdataUpdateDelCoef(), consEnfo(), convertLongEquality(), convertUnaryEquality(), correctLocksAndCaptures(), createAndAddAnds(), createAndAddLinearCons(), createGenVBound(), createMIP(), createNewSol(), createObjRow(), createProbSimplified(), createSubscip(), createVariables(), cutsSubstituteMIR(), cutsSubstituteStrongCG(), cutsTransformKnapsackCover(), DECL_CURVCHECK(), delCoefPos(), detectHiddenProducts(), detectSocNorm(), detectSocQuadraticComplex(), detectSocQuadraticSimple(), determineBestBounds(), determineBound(), dropObjEvent(), ecaggrAddBilinTerm(), enforceConflictgraph(), enumeratePatterns(), estimateConvexSecant(), estimateGradient(), estimateHyperbolaMixed(), estimateHyperbolaPositive(), execRelpscost(), exprdataCreate(), extractCliques(), fillGlobalStartingData(), filterBounds(), filterExistingLP(), filterRound(), findMonoidalQuadRoot(), findRho(), fixIntegerVariable(), fixVariableZero(), fullDualPresolve(), generateAndApplyBendersCuts(), generateBoundInequalityFromSOS1Nodes(), generateCloseCutPoint(), generateClusterCuts(), generateCutSolDisagg(), generateCutSolSOC(), generateRowCardinality(), getActiveVar(), getBinVarsRepresentatives(), getBoundConsFromVertices(), getDualBranchscore(), getFeasiblePointsBilinear(), getGMIFromRow(), getMaxactImplicObjchg(), getMinactImplicObjchg(), getObjectiveFactor(), getOptimalShiftingValue(), getPotential(), getPotentialContributed(), getScore(), getScoreLikeCoefdiving(), handleNewVariableCardinality(), handleNewVariableSOS1(), improvePoint(), initCurrent(), insertRayEntries(), intercutsComputeCommonQuantities(), isPartition(), isSingleLockedCand(), lockRounding(), mergeMultiples(), mod2MatrixAddOrigRow(), mod2MatrixAddTransRow(), mod2matrixPreprocessColumns(), mod2matrixRemoveRow(), mod2rowAddRow(), modifyAndPackCut(), nodepairqueueCreate(), normalizeCons(), objimplicsCreate(), optimize(), performDualfix(), performStrongbranchSOS1(), permuteStartSolution(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundSOS2(), presolStuffing(), printActiveVariables(), printBoundSection(), printDualSol(), printLinearRow(), printNLRow(), printRhsSection(), printRow(), propagateCons(), propagateCutoffbound(), propagateCutoffboundBinvar(), propagateCutoffboundGlobally(), propagateCutoffboundVar(), propagateLowerbound(), propagateLowerboundVar(), propdataInit(), propIndicator(), proposeFeasibleSolution(), rangedRowPropagation(), raysAreDependent(), readBounds(), readCoefficients(), readCols(), readObjective(), readOPBFile(), readRhs(), reformRowprep(), reformulateFactorizedBinaryQuadratic(), resolvePropagation(), rowprepCleanupIntegralCoefs(), rowprepCleanupSide(), scaleCons(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSGETPERMSYMGRAPH(), SCIP_DECL_CONSGETSIGNEDPERMSYMGRAPH(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRBWDIFF(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRINITSEPA(), SCIP_DECL_NONLINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPEXITPRE(), SCIP_DECL_PROPPRESOL(), SCIP_DECL_PROPRESPROP(), SCIP_DECL_READERREAD(), SCIP_DECL_READERWRITE(), SCIP_DECL_SEPAEXECLP(), SCIPaddCoefLinear(), SCIPaddCoefPseudoboolean(), SCIPaddRow(), SCIPaddSymgraphVarAggregation(), SCIPaddVarVlb(), SCIPaddVarVub(), SCIPaggrRowAddObjectiveFunction(), SCIPanalyzeDeductionsProbing(), SCIPapplyProximity(), SCIPbendersSetupSubproblem(), SCIPchgCoefLinear(), SCIPchgReoptObjective(), SCIPclassifyConstraintTypesLinear(), SCIPcomputeBilinEnvelope1(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsOrbitope(), SCIPcreateNlpiProblemFromNlRows(), SCIPestimateRoot(), SCIPgetVectorEfficacyNorm(), SCIPisObjIntegral(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIPreduceMatrixSize(), SCIPupgradeConsLinear(), SCIPwriteGms(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), selectShifting(), setupAggregationData(), setupSubproblem(), simplifyInequalities(), solCutIsViolated(), solveBilinearLP(), solveClassification(), solveMinIISC(), solveSingleRowLP(), solveSubNLP(), sparsifyIntercut(), storeAggrFromMIP(), storeCutInArrays(), switchNext(), termIsConstant(), tightenCoefs(), tightenVarBounds(), tightenVarBoundsEasy(), tightenVarsBoundsSOS1(), transformColumn(), transformNonIntegralRow(), tryAddGadgetBilinearProductSignedPerm(), tryAddGadgetEvenOperatorSum(), tryAddGadgetEvenOperatorVariable(), tryFillNlhdlrExprDataQuad(), tryUpgradingXor(), unlockRounding(), updateBilinearRelaxation(), updateMIP(), updateObjectiveVector(), updateSlacks(), updateSubgradient(), upgradeConss(), writeFzn(), and writeOpbObjective().

◆ SCIPisPositive()

SCIP_Bool SCIPisPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 570 of file scip_numerics.c.

References NULL, and SCIPsetIsPositive().

Referenced by addBilinearTermToCut(), addCoefTerm(), addConflictBinvar(), addPathCuts(), aggregateConstraints(), applyAlternativeBoundsBranching(), calcMaxObjPseudoactivity(), calculateShift(), checkParallelObjective(), checkRedundancySide(), checkSignomialBounds(), chgCoefPos(), chgLhs(), chgRhs(), collectMaxactVar(), combineCols(), computeCutsAbs(), computeNextAdjacency(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), consEnfo(), convertLongEquality(), createAndAddLinearCons(), createCGCutDirect(), createMIP(), cutsSubstituteStrongCG(), cutTightenCoefs(), cutTightenCoefsQuad(), detectSocQuadraticSimple(), dfs(), doSeparation(), dualBoundStrengthening(), dualPresolve(), estimateSignedpower(), evaluateLiftingFunctionKnapsack(), extractCapacityRows(), extractCliques(), extractFlowRows(), filterRound(), findFixings(), fixIntegerVariable(), fixVariableZero(), fullDualPresolve(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateRowCardinality(), getBranchingDecisionStrongbranchSOS1(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getScoreOfFarkasDiving(), initData(), isCandidate(), l1BallProjection(), lockRoundingAndCons(), nodepairqueueCreate(), normalizeCons(), optimize(), performDualfix(), permuteStartSolution(), predBndStr(), preprocessConstraintPairs(), presolStuffing(), propagateCons(), propagateLowerboundBinvar(), propIndicator(), proposeFeasibleSolution(), rangedRowSimplify(), resolveGenVBoundPropagation(), resolvePropagation(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLREVALAUX(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_SEPAEXECLP(), SCIPaddCoefPseudoboolean(), SCIPapplyLockFixings(), SCIPbendersSolSlackVarsActive(), SCIPcalcMIR(), SCIPcalcStrongCG(), SCIPchgReoptObjective(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPupdateStartpointHeurSubNlp(), SCIPupgradeConsLinear(), searchEcAggrWithCliques(), selectInitialVariableRandomly(), selectShifting(), separateCuts(), separatePerspective(), setUpEvents(), solveAndEvalSubscip(), solveLagrangianDual(), solveSingleRowLP(), sortGenVBounds(), tightenVarBoundsEasy(), transformAndSolve(), unlockRoundingAndCons(), updateMuSteplengthParam(), upgradeLinearSuperindicator(), varMayRoundDown(), and varMayRoundUp().

◆ SCIPisNegative()

SCIP_Bool SCIPisNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 582 of file scip_numerics.c.

References NULL, and SCIPsetIsNegative().

Referenced by addConflictBinvar(), adjustCutoffbound(), applyAlternativeBoundsBranching(), applyFixings(), calcBranchScore(), calcMaxObjPseudoactivity(), calculateShift(), checkLogCriterion(), checkParallelObjective(), chgCoefPos(), collectMinactVar(), combineCols(), computeCut(), computeCutsAbs(), computeStandardLPFeasibilityCut(), computeStandardLPOptimalityCut(), computeTangent(), computeVertexPolyhedralFacetBivariate(), convertLongEquality(), copySofttimelimit(), createMIP(), createVarUbs(), cutTightenCoefs(), cutTightenCoefsQuad(), detectSocNorm(), detectSocQuadraticSimple(), determineBestBounds(), dualPresolve(), dualPresolving(), extractCapacityRows(), extractNodes(), fillGlobalStartingData(), filterRound(), findFixings(), fixIntegerVariable(), fixVariableZero(), fullDualPresolve(), generateBoundInequalityFromSOS1Nodes(), generateClusterCuts(), generateDisjCutSOS1(), generateRowCardinality(), getScoreOfFarkasDiving(), isCandidate(), isFiniteNonnegativeIntegral(), l1BallProjection(), l2BallProjection(), linfBallProjection(), nlrowaggrCreate(), nodepairqueueCreate(), normalizeCons(), objimplicsCreate(), performDualfix(), predBndStr(), preprocessConstraintPairs(), presolStuffing(), ObjPricerVRP::pricing(), propagateCons(), propagateCutoffboundBinvar(), proposeFeasibleSolution(), rangedRowSimplify(), removeDoubleAndSingletonsAndPerformDualpresolve(), SCIP_DECL_CONSINITLP(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTINIT(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPcalcCumulativeDistribution(), SCIPclassifyConstraintTypesLinear(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcutsTightenCoefficients(), SCIPgenVBoundAdd(), SCIPgetReadingTime(), SCIPvarCalcDistributionParameters(), searchEcAggrWithCliques(), selectShifting(), separatePerspective(), simplifyInequalities(), solveAndEvalSubscip(), solveSingleRowLP(), sortGenVBounds(), tightenVarBoundsEasy(), transformAndSolve(), transformColumn(), tryFillNlhdlrExprDataQuad(), updateBallRadius(), updateBestCandidate(), upgradeLinearSuperindicator(), varMayRoundDown(), and varMayRoundUp().

◆ SCIPisIntegral()

SCIP_Bool SCIPisIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 594 of file scip_numerics.c.

References NULL, and SCIPsetIsIntegral().

Referenced by addCoefTerm(), addExpLinearization(), addLogLinearization(), aggregateConstraints(), aggregateVariables(), applyFixings(), assignVars(), branchOnVar(), calcBranchScore(), cancelCol(), cancelRow(), computeCut(), computeSignpowerRoot(), consdataCheckSuperindicator(), consdataIsResidualIntegral(), convertBoundToInt(), convertLongEquality(), createAndAddLinearCons(), dualPresolve(), enfopsPackingPartitioningOrbitopeSolution(), estimateConvexSecant(), fixAndPropagate(), flattenFloat(), fullDualPresolve(), getFlowCover(), isEvenOperator(), isFiniteNonnegativeIntegral(), isPartition(), normalizeCons(), parseRange(), presolStuffing(), presolveImplint(), prettifyConss(), printLinearCons(), printNLRow(), printRow(), printValue(), propagateStaticLexred(), propagateStaticOrbitope(), propIndicator(), rangedRowPropagation(), readCoefficients(), readOPBFile(), readPolynomial(), reformulateFactorizedBinaryQuadratic(), roundPartition(), runBenders(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSINITSOL(), SCIP_DECL_CONSPARSE(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PROPRESPROP(), SCIPaddCoefPseudoboolean(), SCIPaddSquareLinearization(), SCIPaddVarIndicator(), SCIPclassifyConstraintTypesLinear(), SCIPconsAddCoef(), SCIPcreateConsIndicatorGeneric(), SCIPcreateConsIndicatorGenericLinConsPure(), SCIPisObjIntegral(), SCIPsolveKnapsackExactly(), SCIPupgradeConsLinear(), simplifyInequalities(), tightenBounds(), tightenCoefs(), tightenSides(), tightenVariables(), updateBestCandidate(), updateVariableRounding(), updateVarVals(), writeExpandedSolutions(), writeFzn(), and writeOpbObjective().

◆ SCIPisScalingIntegral()

SCIP_Bool SCIPisScalingIntegral	(	SCIP *	scip,
		SCIP_Real	val,
		SCIP_Real	scalar
	)

checks whether the product val * scalar is integral in epsilon scaled by scalar

Parameters

scip	SCIP data structure
val	unscaled value to check for scaled integrality
scalar	value to scale val with for checking for integrality

Definition at line 606 of file scip_numerics.c.

References NULL, and SCIPsetIsScalingIntegral().

Referenced by scaleCons().

◆ SCIPisFracIntegral()

SCIP_Bool SCIPisFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than epsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 619 of file scip_numerics.c.

References NULL, and SCIPsetIsFracIntegral().

◆ SCIPfloor()

SCIP_Real SCIPfloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + epsilon down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 631 of file scip_numerics.c.

References NULL, and SCIPsetFloor().

Referenced by addExpLinearization(), addLogLinearization(), addOneRow(), applyFixings(), branchBalancedCardinality(), calcColorValue(), checkCands(), computeFixingrate(), computeMIREfficacy(), computeSignpowerRoot(), createCGMIPprimalsols(), createSubSCIP(), cutsSubstituteStrongCG(), DECL_CHANGESUBSCIP(), dualPresolve(), enforceConflictgraph(), enforceConssSOS1(), estimateConvexSecant(), evaluateLiftingFunctionKnapsack(), findNewBounds(), fixDiscreteVars(), fixVariable(), forwardPropExpr(), fullDualPresolve(), generateClusterCuts(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), getCoef(), getNCircles(), handleCycle(), handleNlpParam(), performDualfix(), predBndStr(), presolStuffing(), proposeFeasibleSolution(), rangedRowPropagation(), readOPBFile(), readVariables(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPaddSquareLinearization(), SCIPaggrRowAddRow(), SCIPanalyzeDeductionsProbing(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackExactly(), SCIPtightenExprIntervalNonlinear(), SCIPwriteGms(), selectNextDiving(), setupSubScip(), simplifyInequalities(), tightenBoundProbing(), tightenVariables(), tightenVarsBoundsSOS1(), transformAndSolve(), tryAdd2variableBuffer(), and updateArcData().

◆ SCIPceil()

SCIP_Real SCIPceil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - epsilon up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 643 of file scip_numerics.c.

References NULL, and SCIPsetCeil().

Referenced by addOneRow(), checkCands(), computeSVTS(), createObjRow(), createReaderdata(), cutsRoundStrongCG(), cutsSubstituteStrongCG(), estimateConvexSecant(), findNewBounds(), findUncapacitatedArcs(), fixVariable(), forbidFixation(), forwardPropExpr(), fullDualPresolve(), generateDisjCutSOS1(), generateLiftedFlowCoverCut(), handleCycle(), maxCircles(), performDualfix(), predBndStr(), presolStuffing(), propIndicator(), proposeFeasibleSolution(), rangedRowPropagation(), readVariables(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SEPAEXECSOL(), SCIPaggrRowAddRow(), SCIPanalyzeDeductionsProbing(), SCIPcalcStrongCG(), SCIPcreateConsIndicatorGeneric(), SCIPcutGenerationHeuristicCMIR(), SCIPcutsTightenCoefficients(), SCIPperformGenericDivingAlgorithm(), SCIPtightenExprIntervalNonlinear(), SCIPwriteGms(), selectNextDiving(), selectVarStart(), separateCuts(), separateGLS(), separateHeur(), simplifyInequalities(), tightenBoundProbing(), tightenVariables(), tightenVarsBoundsSOS1(), transformAndSolve(), updateArcData(), and visualizeSolutionAscii().

◆ SCIPround()

SCIP_Real SCIPround	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer with epsilon tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 655 of file scip_numerics.c.

References NULL, and SCIPsetRound().

Referenced by applyFixings(), cutTightenCoefs(), cutTightenCoefsQuad(), DECL_VARFIXINGS(), estimateConvexSecant(), flattenFloat(), mod2(), printNLRow(), printRow(), rowprepCleanupIntegralCoefs(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIPapplyHeurSubNlp(), scoreBranchingCandidates(), solveNLP(), tryAddGadgetSquaredDifference(), updateVarVals(), visualizeSolutionAscii(), visualizeSolutionGnuplot(), visualizeSolutionMatplotlib(), writeOpbConstraints(), and writeOpbObjective().

◆ SCIPfrac()

SCIP_Real SCIPfrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x) in epsilon tolerance

Parameters

scip	SCIP data structure
val	value to return fractional part for

Definition at line 667 of file scip_numerics.c.

References NULL, and SCIPsetFrac().

Referenced by changeSubvariableObjective(), computeCut(), createCGCutCMIR(), createCGCutStrongCG(), createCGMIPprimalsols(), cutsTransformMIR(), DECL_VARFIXINGS(), generateClusterCuts(), getGMIFromRow(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECLP(), and SCIP_DECL_HEUREXEC().

◆ SCIPisSumEQ()

SCIP_Bool SCIPisSumEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if values are in range of sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 679 of file scip_numerics.c.

References NULL, and SCIPsetIsSumEQ().

Referenced by computeVarRatio(), SCIP_DECL_BRANCHEXECLP(), separateSCIs(), transformNonIntegralRow(), and updateBestCandidate().

◆ SCIPisSumLT()

SCIP_Bool SCIPisSumLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than sumepsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 692 of file scip_numerics.c.

References NULL, and SCIPsetIsSumLT().

Referenced by proposeFeasibleSolution(), solveComponent(), and transformNonIntegralRow().

◆ SCIPisSumLE()

SCIP_Bool SCIPisSumLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than sumepsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 705 of file scip_numerics.c.

References NULL, and SCIPsetIsSumLE().

Referenced by filterCandidates(), getAlphaAndBeta(), and scoring().

◆ SCIPisSumGT()

SCIP_Bool SCIPisSumGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is (more than sumepsilon) greater than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 718 of file scip_numerics.c.

References NULL, and SCIPsetIsSumGT().

Referenced by constructCompression(), execRelpscost(), SCIP_DECL_BRANCHEXECLP(), tightenVarBoundsEasy(), transformNonIntegralRow(), and updateBestCandidate().

◆ SCIPisSumGE()

SCIP_Bool SCIPisSumGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if val1 is not (more than sumepsilon) lower than val2

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 731 of file scip_numerics.c.

References NULL, and SCIPsetIsSumGE().

Referenced by execRelpscost().

◆ SCIPisSumZero()

SCIP_Bool SCIPisSumZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range sumepsilon of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 744 of file scip_numerics.c.

References NULL, and SCIPsetIsSumZero().

Referenced by computeCut().

◆ SCIPisSumPositive()

SCIP_Bool SCIPisSumPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than sumepsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 756 of file scip_numerics.c.

References NULL, and SCIPsetIsSumPositive().

Referenced by calcBranchScore(), computeCut(), and createCGCutCMIR().

◆ SCIPisSumNegative()

SCIP_Bool SCIPisSumNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -sumepsilon

Parameters

scip	SCIP data structure
val	value to process

Definition at line 768 of file scip_numerics.c.

References NULL, and SCIPsetIsSumNegative().

Referenced by SCIP_DECL_BRANCHEXECLP().

◆ SCIPisFeasEQ()

SCIP_Bool SCIPisFeasEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 780 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasEQ().

Referenced by addFacetToCut(), addLinearTermToCut(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addRowToCut(), applyFixings(), applyNlobbt(), applyRepair(), branchUnbalancedCardinality(), calculateAlternatives(), checkCons(), checkConsQuadraticProblem(), checkRikun(), checkSetupTolerances(), chooseDoubleVar(), collectNonBinaryImplicationData(), collectNonBinaryVBoundData(), computeInitialKnapsackCover(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), computeNogoodCut(), computeRanks(), computeSecant(), computeStandardIntegerOptCut(), consdataCheckSuperindicator(), consFixLinkvar(), constructCompression(), createAndAddAndCons(), createCGCutDirect(), createConflict(), createCoveringProblem(), createIndicatorConstraint(), createProjRow(), createRows(), createSelectedSortedEventpointsSol(), createSubscip(), createSubSCIP(), createSwitchSolution(), CUTOFF_CONSTRAINT(), deleteVarCardinality(), determineFixings(), determineVariableFixings(), doBinarySearch(), doPricing(), doSolveSubMIP(), enforceCardinality(), enforceConstraint(), filterExistingLP(), findPointPosition(), fixAndPropagate(), generateAverageNBRay(), generateBoundInequalityFromSOS1Nodes(), generateNeighborFacets(), generateRowCardinality(), generateZerohalfCut(), getCover(), getNActiveConsScore(), getPartitionNoncovervars(), getSolutionValues(), GUBsetCalcCliquePartition(), handleNewVariableCardinality(), heurExec(), initProblem(), isPossibleToComputeCut(), LOPseparate(), markRowsXj(), optimize(), performDualfix(), performRandRounding(), phi(), presolRoundCardinality(), presolveAddKKTAggregatedVars(), presolveAddKKTLinearCons(), presolveAddKKTLinearConss(), presolveAddKKTVarboundConss(), printBoundSection(), processBinvarFixings(), processFixings(), processWatchedVars(), propagateCons(), propagateCutoffboundVar(), propagateRedcostBinvar(), propagateRedcostVar(), propCardinality(), propdataInit(), raysAreDependent(), readBinaries(), readBounds(), reboundIntegerVariables(), registerBranchingCandidates(), resolvePropagationCoretimes(), rowFindSlackVar(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSINITLP(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSSEPALP(), SCIP_DECL_CONSSEPASOL(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_NLHDLRENFO(), SCIP_DECL_PRESOLEXEC(), SCIPaddIneqBilinear(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPaddVarImplication(), SCIPapplyHeurDualval(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPconvertRealToInt(), SCIPconvertRealToLongint(), SCIPgenerateAndApplyBendersOptCut(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPwriteGms(), SCIPwriteLp(), separateCons(), separateCuts(), separateIISRounding(), sequentialUpAndDownLifting(), sequentialUpAndDownLiftingGUB(), setAltLPObj(), setObjective(), simplifyInequalities(), solveAndEvalSubscip(), solveBilinearLP(), switchNext(), termIsConstant(), tightenBounds(), transformValue(), updateSlacks(), varIsFixed(), varIsFixedLocal(), and varProcessBoundChanges().

◆ SCIPisFeasLT()

SCIP_Bool SCIPisFeasLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference val1 and val2 is lower than feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 793 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasLT().

Referenced by addCut(), addUpperBound(), analyseVarOnoffBounds(), analyzeGenVBoundConflict(), applyFixings(), applyRepair(), branchBalancedCardinality(), calcBranchScore(), calculateBounds(), checkCons(), checkKnapsack(), checkOrigPbCons(), checkRowViolation(), checkViolations(), collectNonBinaryVBoundData(), computeCut(), computeVarsCoverSOS1(), consdataTightenCoefs(), countSparseSol(), createCGCutCMIR(), createCGCutStrongCG(), createSubscip(), detectRedundantConstraints(), execGenVBounds(), executeBranching(), extractCliques(), filterPoints(), findPointPosition(), getBoundConsFromVertices(), getCover(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getMaxactImplicObjchg(), getOptimalShiftingValue(), handleNewVariableSOS2(), improvePoint(), isConsViolated(), optimize(), performImplicationGraphAnalysis(), performStrongbranchSOS1(), preprocessConstraintPairs(), propagateCons(), propagateCutoffboundBinvar(), propagateLowerboundBinvar(), propagateLowerboundVar(), propagateRedcostVar(), propIndicator(), propVariableNonzero(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_DISPOUTPUT(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PROPEXEC(), SCIP_DECL_SORTPTRCOMP(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPperformGenericDivingAlgorithm(), SCIPprobdataUpdateDualbound(), SCIPseparateRelaxedKnapsack(), SCIPsolveKnapsackApproximatelyLT(), sepaImplBoundCutsSOS1(), separateIISRounding(), separateMcCormickImplicit(), setupAndSolveFiniteSolSubscip(), setupAndSolveSubscipRapidlearning(), setupProblem(), simplifyInequalities(), solvePricingHeuristic(), tightenCoefs(), tightenVarBounds(), tightenVarBoundsEasy(), tightenVarsBoundsSOS1(), tryFixVar(), updateArcData(), updateImplicationGraphSOS1(), updateViolations(), and upgradeCons().

◆ SCIPisFeasLE()

SCIP_Bool SCIPisFeasLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 806 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasLE().

Referenced by addConflictBounds(), applyFixings(), applyRepair(), branchruledataUpdateCurrentBounds(), calcShiftVal(), checkBounddisjunction(), checkCons(), checkConsQuadraticProblem(), checkConstraintMatching(), checkRowViolation(), checkViolations(), collectNonBinaryImplicationData(), computeInitialKnapsackCover(), computeRevPropIntervalSin(), consFixLinkvar(), constructSNFRelaxation(), convertLongEquality(), createSubscip(), cutTightenCoefs(), cutTightenCoefsQuad(), determineBound(), dualPresolve(), evaluateLiftingFunction(), extractCliques(), filterCands(), filterExistingLP(), filterRound(), findDominancePairs(), generateDisjCutSOS1(), generateNeighborFacets(), getFeasibleSet(), getFlowCover(), getOptimalShiftingValue(), heurdataUpdateCurrentBounds(), heurExec(), isConsViolated(), isDisplaySol(), optimize(), performRandRounding(), propagateRootRedcostVar(), registerBranchingCandidates(), rowCalculateGauss(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_NLHDLRESTIMATE(), SCIP_DECL_RELAXEXEC(), SCIPaddIneqBilinear(), SCIPapplyHeurDualval(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPcalcCumulativeDistribution(), SCIPcheckPattern(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPcutsTightenCoefficients(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPupdateDistributionScore(), separateCuts(), setObjective(), setupAndSolveSubscipRapidlearning(), shiftValues(), simplifyInequalities(), solveAndEvalSubscip(), tightenBounds(), tightenCoefs(), tightenVarBounds(), tightenVarUb(), transformVariable(), tryToInsert(), updateBestCandidate(), updateBilinearRelaxation(), updateSlacks(), and updateVariableRounding().

◆ SCIPisFeasGT()

SCIP_Bool SCIPisFeasGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than feastol

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 819 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasGT().

Referenced by addGenVBound(), addLowerBound(), analyseVarOnoffBounds(), analyzeGenVBoundConflict(), applyFixings(), applyObbtBilinear(), applyRepair(), checkCons(), checkOrigPbCons(), checkRowViolation(), checkViolations(), collectNonBinaryVBoundData(), computeCut(), consdataTightenCoefs(), createCGCutCMIR(), createCGCutDirect(), createCGCutStrongCG(), createSubscip(), doPricing(), enforceCardinality(), executeBranching(), extractCliques(), findPointPosition(), generateClusterCuts(), generateNeighborFacets(), getBestEstimators(), getCover(), getFlowCover(), getMaxactImplicObjchg(), getPartitionCovervars(), getPartitionNoncovervars(), handleNewVariableSOS2(), makeSOS1constraintsFeasible(), optimize(), performImplicationGraphAnalysis(), performStrongbranchSOS1(), preprocessConstraintPairs(), propagateCons(), propagateLowerboundVar(), propVariableNonzero(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOLP(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSPRESOL(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_SEPAEXECLP(), SCIP_DECL_SORTPTRCOMP(), SCIPapplyLockFixings(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPperformGenericDivingAlgorithm(), SCIPseparateRelaxedKnapsack(), sepaImplBoundCutsSOS1(), separateCuts(), separateSupLiftedMinimalCoverInequality(), sequentialUpAndDownLifting(), setupAndSolveFiniteSolSubscip(), shiftValues(), simplifyInequalities(), tightenCoefs(), tightenVarBounds(), tightenVarsBoundsSOS1(), tryFixVar(), tryToInsert(), updateArcData(), updateImplicationGraphSOS1(), updateViolations(), and upgradeCons().

◆ SCIPisFeasGE()

SCIP_Bool SCIPisFeasGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -feastol

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 832 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasGE().

Referenced by addConflictBounds(), applyFixings(), calcShiftVal(), checkBounddisjunction(), checkCons(), checkConsQuadraticProblem(), checkRowViolation(), checkViolations(), collectNonBinaryImplicationData(), computeRevPropIntervalSin(), constructSNFRelaxation(), determineBound(), dfs(), doPricing(), dualPresolve(), extractCliques(), extractVariablesMINLP(), filterCands(), filterExistingLP(), filterPoints(), filterRound(), findDominancePairs(), forbidCover(), generateNeighborFacets(), getFeasibleSet(), getFlowCover(), improvePoint(), isConsViolated(), optimize(), performRandRounding(), propagateRootRedcostVar(), propIndicator(), registerBranchingCandidates(), sampleRandomPoints(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERREDCOST(), SCIPapplyLockFixings(), SCIPapplyProximity(), SCIPcheckPattern(), SCIPcomputeBilinEnvelope1(), SCIPcomputeBilinEnvelope2(), SCIPmakeIndicatorFeasible(), SCIPperformGenericDivingAlgorithm(), SCIProwCalcProbability(), SCIPsolveKnapsackApproximatelyLT(), SCIPupdateDistributionScore(), separateCuts(), separateSupLiftedMinimalCoverInequality(), setObjective(), shiftValues(), simplifyInequalities(), solveAndEvalSubscip(), tightenBounds(), tightenCoefs(), tightenVarBounds(), tightenVarLb(), tryToInsert(), updateBestCandidate(), updateBilinearRelaxation(), updateSlacks(), and varProcessBoundChanges().

◆ SCIPisFeasZero()

SCIP_Bool SCIPisFeasZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range feasibility tolerance of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 845 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasZero().

Referenced by addAltLPColumn(), addBranchingComplementaritiesSOS1(), addGenVBound(), addOneRow(), aggregateNextRow(), applyObbtBilinear(), applyRepair(), BENDERS_CUTORACLE(), branchBalancedCardinality(), branchUnbalancedCardinality(), calculateAlternatives(), checkConsQuadraticProblem(), checkIISlocal(), checkLinearConssVarboundSOS1(), checkLPBoundsClean(), checkPackingPartitioningOrbitopeSolution(), checkSwitchNonoverlappingSOS1Methods(), computeMIREfficacy(), createAltLPColumn(), createAndAddAndCons(), createCGMIPprimalsols(), createConflict(), createKKTComplementarityBounds(), detectVarboundSOS1(), doBinarySearch(), enforceCardinality(), enforceConflictgraph(), enforceConssSOS1(), enforceCuts(), enforceIndicators(), enforceSol(), enforceSOS2(), extendToCover(), fixVariableZeroNode(), generateAverageNBRay(), generateAverageRay(), generateClusterCuts(), generateDisjCutSOS1(), generateRowSOS2(), getBranchingPrioritiesSOS1(), getBranchingVerticesSOS1(), getDiveBdChgsSOS1constraints(), getFlowCover(), getGMIFromRow(), getSimplexCoefficients(), getVectorOfWeights(), initConflictgraph(), isSolFeasible(), isViolatedSOS1(), isZero(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), markNeighborsMWISHeuristic(), normalizeCons(), polishPrimalSolution(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundIndicator(), presolRoundSOS2(), presolveAddKKTAggregatedVars(), presolveAddKKTQuadBilinearTerms(), presolveAddKKTQuadLinearTerms(), presolveAddKKTQuadQuadraticTerms(), printBoundSection(), processBinvarFixings(), processFixings(), propCardinality(), propIndicator(), propVariableNonzero(), readBinaries(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONFLICTEXEC(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_EXPRINITESTIMATES(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRICERFARKAS(), SCIP_DECL_SEPAEXECLP(), SCIPaddIneqBilinear(), SCIPaddVarImplication(), SCIPapplyProximity(), SCIPcalcCumulativeDistribution(), SCIPinitVarBranchStats(), SCIPinitVarValueBranchStats(), SCIPmakeIndicatorFeasible(), SCIPprintSolutionStatistics(), SCIPselectVarStrongBranching(), sepaImplBoundCutsSOS1(), separateCuts(), separateIISRounding(), separatePoint(), setObjective(), setupAndSolveSubscip(), setupSubScip(), simplifyInequalities(), solveBilinearLP(), TCLIQUE_NEWSOL(), tightenBounds(), tightenVarsBoundsSOS1(), transformVariable(), tryFixVar(), updateImplicationGraphSOS1(), updatePartition(), updateStepLength(), updateSubgradient(), updateTransformation(), and updateWeightsTCliquegraph().

◆ SCIPisFeasPositive()

SCIP_Bool SCIPisFeasPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 857 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasPositive().

Referenced by addBranchingComplementaritiesSOS1(), addConflictBounds(), addCut(), aggregateGeneratedCuts(), branchBalancedCardinality(), branchUnbalancedCardinality(), canonicalizeConstraints(), checkAndConss(), checkCons(), checkConsQuadraticProblem(), computeBranchingPriorities(), computeCut(), consdataCreate(), constructCutRow(), createCGCutCMIR(), createCGCutStrongCG(), detectVarboundSOS1(), enforceCardinality(), extractCycle(), fixVariableZeroNode(), generateAverageNBRay(), generateBoundInequalityFromSOS1Cons(), generateClusterCuts(), generateDisjCutSOS1(), generateNeighborFacets(), getBoundConsFromVertices(), getCover(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getNActiveConsScore(), getNCircles(), getScore(), getScoreLikeCoefdiving(), getSOS1Implications(), getVariableRedcostScore(), getVectorOfWeights(), handleNewVariableSOS1(), handleNewVariableSOS2(), inferVariableZero(), initMatrix(), lockVariableCardinality(), lockVariableSOS1(), lockVariableSOS2(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), markRowsXj(), nodeGetSolvalBinaryBigMSOS1(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundIndicator(), presolRoundSOS2(), propCardinality(), propConsSOS1(), propIndicator(), propSOS2(), propVariableNonzero(), relaxVar(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), SCIPisViolatedIndicator(), SCIPmakeIndicatorFeasible(), separateCons(), separatePoint(), separateRltCuts(), TCLIQUE_NEWSOL(), tightenVarsBoundsSOS1(), unlockVariableCardinality(), unlockVariableSOS1(), unlockVariableSOS2(), updateImplicationGraphSOS1(), updateSubgradient(), and updateWeightsTCliquegraph().

◆ SCIPisFeasNegative()

SCIP_Bool SCIPisFeasNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 869 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasNegative().

Referenced by addBranchingComplementaritiesSOS1(), addConflictBounds(), addCut(), aggregateGeneratedCuts(), branchBalancedCardinality(), branchUnbalancedCardinality(), canonicalizeConstraints(), checkConsQuadraticProblem(), computeCut(), computeInteriorPoint(), constructCutRow(), createCGCutCMIR(), createCGCutStrongCG(), detectVarboundSOS1(), enforceCardinality(), enforceIndicators(), extendToCover(), extractCycle(), fixVariableZeroNode(), generateAverageNBRay(), generateBoundInequalityFromSOS1Cons(), getBoundConsFromVertices(), getDiveBdChgsSOS1conflictgraph(), getDiveBdChgsSOS1constraints(), getNActiveConsScore(), getNCircles(), getScore(), getScoreLikeCoefdiving(), getSOS1Implications(), getVariableRedcostScore(), handleNewVariableSOS1(), handleNewVariableSOS2(), inferVariableZero(), initMatrix(), lockVariableCardinality(), lockVariableSOS1(), lockVariableSOS2(), makeSOS1conflictgraphFeasible(), makeSOS1constraintsFeasible(), nodeGetSolvalBinaryBigMSOS1(), performImplicationGraphAnalysis(), preprocessConstraintPairs(), presolRoundCardinality(), presolRoundConsSOS1(), presolRoundSOS2(), propCardinality(), propConsSOS1(), propSOS2(), propVariableNonzero(), relaxVar(), rowCalculateGauss(), SCIP_DECL_CONSLOCK(), SCIP_DECL_CONSPROP(), SCIP_DECL_CONSRESPROP(), SCIP_DECL_CONSTRANS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECLP(), SCIPmakeIndicatorFeasible(), sepaImplBoundCutsSOS1(), separateCons(), separateConsBinaryRepresentation(), separateCoverCutsCons(), separateDeterminant(), separateIndicators(), separateMcCormickImplicit(), separatePoint(), separateRltCuts(), simplifyInequalities(), solvePricingHeuristic(), TCLIQUE_NEWSOL(), tightenBounds(), tightenVarsBoundsSOS1(), unlockVariableCardinality(), unlockVariableSOS1(), unlockVariableSOS2(), updateImplicationGraphSOS1(), and updateWeightsTCliquegraph().

◆ SCIPisFeasIntegral()

SCIP_Bool SCIPisFeasIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within the LP feasibility bounds

Parameters

scip	SCIP data structure
val	value to process

Definition at line 881 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasIntegral().

Referenced by addGLSCliques(), addLocalBranchingConstraint(), addLocalbranchingConstraintAndObjcutoff(), addNextLevelCliques(), areBoundsChanged(), BENDERS_CUTORACLE(), branchingIntegralFirst(), checkCands(), checkCumulativeCondition(), checkPackingPartitioningOrbitopeSolution(), checkRedundancySide(), checkSymresackSolution(), chooseDoubleVar(), computeFixingrate(), convertLongEquality(), countSparseSol(), createAndAddLinearCons(), createCGCutDirect(), createCoreProfile(), createNormalizedKnapsack(), createSelectedSortedEventpointsSol(), createSubscip(), CUTOFF_CONSTRAINT(), cutTightenCoefs(), cutTightenCoefsQuad(), DECL_CHANGESUBSCIP(), DECL_VARFIXINGS(), determineBound(), enforceCuts(), execRelpscost(), executeBranching(), fixAndPropagate(), fixVariable(), generateZerohalfCut(), getBranchCands(), getFlowCover(), getHighestCapacityUsage(), getNLPFracVars(), getVariableRedcostScore(), handle1Cycle(), handleCycle(), heurExec(), insertSortedRootNeighbors(), isViolatedAndNotFixed(), mod2(), normalizeCons(), optimize(), performFixing(), performRandRounding(), performRelaxSimpleRounding(), performSimpleRounding(), propagateCons(), readBounds(), readGenerals(), resolvePropagationCoretimes(), roundFixingValue(), runVanillaStrongBranching(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_CONSCHECK(), SCIP_DECL_CONSENFOPS(), SCIP_DECL_CONSENFORELAX(), SCIP_DECL_CONSEXIT(), SCIP_DECL_CONSGETDIVEBDCHGS(), SCIP_DECL_DIVESETGETSCORE(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_SEPAEXECSOL(), SCIPaddTrustregionNeighborhoodConstraint(), SCIPapplyHeurSubNlp(), SCIPapplyProximity(), SCIPcheckSolutionOrbisack(), SCIPconvertRealToInt(), SCIPconvertRealToLongint(), SCIPcutGenerationHeuristicCMIR(), SCIPselectVarPseudoStrongBranching(), SCIPwriteCliqueGraph(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), separateCuts(), separateGLS(), separateHeur(), separateOddCycles(), simplifyInequalities(), solveNLP(), tightenBounds(), tightenCoefs(), tryAdd2variableBuffer(), writeFzn(), writeOpbFixedVars(), and writeOpbRelevantAnds().

◆ SCIPisFeasFracIntegral()

SCIP_Bool SCIPisFeasFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than feastol

Parameters

scip	SCIP data structure
val	value to process

Definition at line 893 of file scip_numerics.c.

References NULL, and SCIPsetIsFeasFracIntegral().

Referenced by SCIP_DECL_HEUREXEC().

◆ SCIPfeasFloor()

SCIP_Real SCIPfeasFloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + feasibility tolerance down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 905 of file scip_numerics.c.

References NULL, and SCIPsetFeasFloor().

Referenced by addOrigRow(), addTrustRegionConstraints(), aggregateVariables(), branchOnVar(), buildMod2Matrix(), calcBranchScore(), calcPscostQuot(), calcShiftVal(), checkRedundancySide(), chooseDoubleVar(), computeCut(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), createAndAddLinearCons(), createNormalizedKnapsack(), createSubscip(), enforceSOS2(), execRelpscost(), executeBranching(), executeBranchingRecursive(), generateZerohalfCut(), getNCircles(), getOptimalShiftingValue(), getZiValue(), handle1Cycle(), performRandRounding(), performSimpleRounding(), roundFixingValue(), scaleCons(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_LINCONSUPGD(), SCIP_DECL_PRESOLEXEC(), SCIPapplyProximity(), SCIPgetVarStrongbranchWithPropagation(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), SCIPseparateRelaxedKnapsack(), SCIPwriteGms(), scoreBranchingCandidates(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), simplifyInequalities(), tightenBounds(), tightenCoefs(), tightenSides(), transformNonIntegralRow(), and updateTcliquegraph().

◆ SCIPfeasCeil()

SCIP_Real SCIPfeasCeil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - feasibility tolerance up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 917 of file scip_numerics.c.

References NULL, and SCIPsetFeasCeil().

Referenced by addGLSCliques(), addNextLevelCliques(), addOrigRow(), branchOnVar(), branchruledataEnsureArraySize(), buildMod2Matrix(), calcBranchScore(), calcShiftVal(), checkRedundancySide(), chooseDoubleVar(), computeCut(), computeEstOmegaset(), computeIntegerVariableBounds(), computeIntegerVariableBoundsDins(), createSubscip(), execRelpscost(), executeBranching(), executeBranchingRecursive(), getOptimalShiftingValue(), getZiValue(), handle1Cycle(), heurdataEnsureArraySize(), insertSortedRootNeighbors(), performFixing(), performRandRounding(), performSimpleRounding(), resolveGenVBoundPropagation(), roundFixingValue(), scaleCons(), SCIP_DECL_BRANCHEXECLP(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRICERREDCOST(), SCIP_DECL_PROPRESPROP(), SCIPapplyProximity(), SCIPapplyUndercover(), SCIPgetVarStrongbranchWithPropagation(), SCIPselectVarPseudoStrongBranching(), SCIPselectVarStrongBranching(), scoreBranchingCandidates(), selectEssentialRounding(), selectRounding(), selectShifting(), selectVarMultAggrBranching(), setupProblem(), simplifyInequalities(), tightenBounds(), tightenCoefs(), tightenSides(), and updateObjUpperbound().

◆ SCIPfeasRound()

SCIP_Real SCIPfeasRound	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer in feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 929 of file scip_numerics.c.

References NULL, and SCIPsetFeasRound().

Referenced by generateZerohalfCut(), heurExec(), and sampleRandomPoints().

◆ SCIPfeasFrac()

SCIP_Real SCIPfeasFrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x)

returns fractional part of value, i.e. x - floor(x) in feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 941 of file scip_numerics.c.

References NULL, and SCIPsetFeasFrac().

Referenced by createCGMIPprimalsols(), createSubproblem(), execRelpscost(), generateGMICuts(), getGMIFromRow(), handleCycle(), roundFixingValue(), SCIP_DECL_HEUREXEC(), SCIP_DECL_SEPAEXECLP(), and separateCuts().

◆ SCIPisDualfeasEQ()

SCIP_Bool SCIPisDualfeasEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 953 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasEQ().

◆ SCIPisDualfeasLT()

SCIP_Bool SCIPisDualfeasLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference val1 and val2 is lower than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 966 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasLT().

Referenced by propagateLowerbound().

◆ SCIPisDualfeasLE()

SCIP_Bool SCIPisDualfeasLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 979 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasLE().

Referenced by propagateLowerboundBinvar().

◆ SCIPisDualfeasGT()

SCIP_Bool SCIPisDualfeasGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 992 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasGT().

◆ SCIPisDualfeasGE()

SCIP_Bool SCIPisDualfeasGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -dual feasibility tolerance

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1005 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasGE().

◆ SCIPisDualfeasZero()

SCIP_Bool SCIPisDualfeasZero	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is in range dual feasibility tolerance of 0.0

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1018 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasZero().

Referenced by computeStandardLPFeasibilityCut(), countNonZeroRootRedcostVars(), createRows(), determineVariableFixings(), getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), propagateRootRedcostVar(), and propdataInit().

◆ SCIPisDualfeasPositive()

SCIP_Bool SCIPisDualfeasPositive	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is greater than dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1030 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasPositive().

Referenced by getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), and propagateRootRedcostVar().

◆ SCIPisDualfeasNegative()

SCIP_Bool SCIPisDualfeasNegative	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is lower than -dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1042 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasNegative().

Referenced by getVariableRedcostScore(), propagateRedcostBinvar(), propagateRedcostVar(), propagateRootRedcostBinvar(), and propagateRootRedcostVar().

◆ SCIPisDualfeasIntegral()

SCIP_Bool SCIPisDualfeasIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if value is integral within the LP dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1054 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasIntegral().

◆ SCIPisDualfeasFracIntegral()

SCIP_Bool SCIPisDualfeasFracIntegral	(	SCIP *	scip,
		SCIP_Real	val
	)

checks, if given fractional part is smaller than dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1066 of file scip_numerics.c.

References NULL, and SCIPsetIsDualfeasFracIntegral().

◆ SCIPdualfeasFloor()

SCIP_Real SCIPdualfeasFloor	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value + dual feasibility tolerance down to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1078 of file scip_numerics.c.

References NULL, and SCIPsetDualfeasFloor().

◆ SCIPdualfeasCeil()

SCIP_Real SCIPdualfeasCeil	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value - dual feasibility tolerance up to the next integer

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1090 of file scip_numerics.c.

References NULL, and SCIPsetDualfeasCeil().

◆ SCIPdualfeasRound()

SCIP_Real SCIPdualfeasRound	(	SCIP *	scip,
		SCIP_Real	val
	)

rounds value to the nearest integer in dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1102 of file scip_numerics.c.

References NULL, and SCIPsetDualfeasRound().

◆ SCIPdualfeasFrac()

SCIP_Real SCIPdualfeasFrac	(	SCIP *	scip,
		SCIP_Real	val
	)

returns fractional part of value, i.e. x - floor(x) in dual feasibility tolerance

Parameters

scip	SCIP data structure
val	value to process

Definition at line 1114 of file scip_numerics.c.

References NULL, and SCIPsetDualfeasFrac().

◆ SCIPisLbBetter()

SCIP_Bool SCIPisLbBetter	(	SCIP *	scip,
		SCIP_Real	newlb,
		SCIP_Real	oldlb,
		SCIP_Real	oldub
	)

checks, if the given new lower bound is tighter (w.r.t. bound strengthening epsilon) than the old one

checks, if the given new lower bound is at least min(oldub - oldlb, |oldlb|) times the bound strengthening epsilon better than the old one

Parameters

scip	SCIP data structure
newlb	new lower bound
oldlb	old lower bound
oldub	old upper bound

Definition at line 1128 of file scip_numerics.c.

References NULL, and SCIPsetIsLbBetter().

Referenced by applyObbt(), isIntervalBetter(), performFixing(), SCIP_DECL_HEUREXEC(), SCIPanalyzeDeductionsProbing(), tightenBoundProbing(), tightenVarBounds(), and tightenVarLb().

◆ SCIPisUbBetter()

SCIP_Bool SCIPisUbBetter	(	SCIP *	scip,
		SCIP_Real	newub,
		SCIP_Real	oldlb,
		SCIP_Real	oldub
	)

checks, if the given new upper bound is tighter (w.r.t. bound strengthening epsilon) than the old one

checks, if the given new upper bound is at least min(oldub - oldlb, |oldub|) times the bound strengthening epsilon better than the old one

Parameters

scip	SCIP data structure
newub	new upper bound
oldlb	old lower bound
oldub	old upper bound

Definition at line 1143 of file scip_numerics.c.

References NULL, and SCIPsetIsUbBetter().

Referenced by applyObbt(), isIntervalBetter(), performFixing(), SCIP_DECL_HEUREXEC(), SCIPanalyzeDeductionsProbing(), tightenBoundProbing(), tightenVarBounds(), and tightenVarUb().

◆ SCIPisRelEQ()

SCIP_Bool SCIPisRelEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1156 of file scip_numerics.c.

References NULL, and SCIPsetIsRelEQ().

Referenced by computeHyperplaneThreePoints(), estimateSpecialPower(), estimateVertexPolyhedral(), estimateVertexPolyhedralProduct(), extractProducts(), forwardPropExpr(), getFeasiblePointsBilinear(), rowprepRecordModifiedVar(), SCIP_DECL_EXPR_INTEVALVAR(), SCIP_DECL_EXPRESTIMATE(), SCIP_DECL_EXPRINITESTIMATES(), SCIPaddBilinMcCormick(), SCIPbranchVarVal(), SCIPbranchVarValNary(), SCIPcomputeBilinEnvelope2(), SCIPcomputeFacetVertexPolyhedralNonlinear(), and SCIPmergeRowprepTerms().

◆ SCIPisRelLT()

SCIP_Bool SCIPisRelLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is lower than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1169 of file scip_numerics.c.

References NULL, and SCIPsetIsRelLT().

Referenced by updateBilinearRelaxation().

◆ SCIPisRelLE()

SCIP_Bool SCIPisRelLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1182 of file scip_numerics.c.

References NULL, and SCIPsetIsRelLE().

Referenced by addLinearConstraints(), getFeasiblePointsBilinear(), and reversePropBilinear().

◆ SCIPisRelGT()

SCIP_Bool SCIPisRelGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1195 of file scip_numerics.c.

References NULL, and SCIPsetIsRelGT().

Referenced by SCIPupdateStartpointHeurSubNlp(), selectVarRecursive(), and updateBilinearRelaxation().

◆ SCIPisRelGE()

SCIP_Bool SCIPisRelGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not lower than -epsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1208 of file scip_numerics.c.

References NULL, and SCIPsetIsRelGE().

Referenced by getFeasiblePointsBilinear(), and reversePropBilinear().

◆ SCIPisSumRelEQ()

SCIP_Bool SCIPisSumRelEQ	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of values is in range of sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1221 of file scip_numerics.c.

References NULL, and SCIPsetIsSumRelEQ().

Referenced by consdataTightenCoefs(), and SCIP_DECL_NLHDLRREVERSEPROP().

◆ SCIPisSumRelLT()

SCIP_Bool SCIPisSumRelLT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is lower than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1234 of file scip_numerics.c.

References NULL, and SCIPsetIsSumRelLT().

◆ SCIPisSumRelLE()

SCIP_Bool SCIPisSumRelLE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is not greater than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1247 of file scip_numerics.c.

References NULL, and SCIPsetIsSumRelLE().

Referenced by consdataTightenCoefs().

◆ SCIPisSumRelGT()

SCIP_Bool SCIPisSumRelGT	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

checks, if relative difference of val1 and val2 is greater than sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1260 of file scip_numerics.c.

References NULL, and SCIPsetIsSumRelGT().

◆ SCIPisSumRelGE()

SCIP_Bool SCIPisSumRelGE	(	SCIP *	scip,
		SCIP_Real	val1,
		SCIP_Real	val2
	)

! [SnippetCodeStyleNaming] checks, if relative difference of val1 and val2 is not lower than -sumepsilon

checks, if relative difference of val1 and val2 is not lower than -sumepsilon

Parameters

scip	SCIP data structure
val1	first value to be compared
val2	second value to be compared

Definition at line 1273 of file scip_numerics.c.

References NULL, and SCIPsetIsSumRelGE().

Referenced by consdataTightenCoefs().

◆ SCIPconvertRealToInt()

int SCIPconvertRealToInt	(	SCIP *	scip,
		SCIP_Real	real
	)

converts the given real number representing an integer to an int; in optimized mode the function gets inlined for performance; in debug mode we check some additional conditions

Parameters

scip	SCIP data structure
real	double bound to convert

Definition at line 1288 of file scip_numerics.c.

References SCIP_Real, SCIPisFeasEQ(), and SCIPisFeasIntegral().

Referenced by adjustOversizedJobBounds(), analyzeEnergyRequirement(), applyAlternativeBoundsBranching(), applyAlternativeBoundsFixing(), checkCumulativeCondition(), checkOverloadViaThetaTree(), collectBinaryVars(), collectBranchingCands(), collectDataTTEF(), collectDemands(), collectIntVars(), computeAlternativeBounds(), computeImpliedEst(), computeImpliedLct(), computeMinDistance(), consCheckRedundancy(), consdataCreateBinvars(), constraintNonOverlappingGraph(), coretimesUpdateLb(), coretimesUpdateUb(), createCoreProfile(), createCoverCuts(), createCoverCutsTimepoint(), createSelectedSortedEventpointsSol(), createSortedEventpoints(), createSortedEventpointsSol(), getActiveVar(), getHighestCapacityUsage(), presolveConsEffectiveHorizon(), presolveConsEst(), presolveConsLct(), propagateLbTTEF(), propagateTimetable(), propagateTTEF(), propagateUbTTEF(), removeIrrelevantJobs(), resolvePropagationCoretimes(), respropCumulativeCondition(), SCIP_DECL_CONSPARSE(), SCIPcreateWorstCaseProfile(), strengthenVarbounds(), tightenCoefs(), tightenLbTTEF(), and tightenUbTTEF().

◆ SCIPconvertRealToLongint()

SCIP_Longint SCIPconvertRealToLongint	(	SCIP *	scip,
		SCIP_Real	real
	)

! [SnippetCodeStyleNaming] converts the given real number representing an integer to a long integer; in optimized mode the function gets inlined for performance; in debug mode we check some additional conditions

converts the given real number representing an integer to a long integer; in optimized mode the function gets inlined for performance; in debug mode we check some additional conditions

Parameters

scip	SCIP data structure
real	double bound to convert

Definition at line 1304 of file scip_numerics.c.

References SCIP_Longint, SCIP_LONGINT_MAX, SCIP_LONGINT_MIN, SCIP_Real, SCIPisFeasEQ(), and SCIPisFeasIntegral().

Referenced by collectSolution(), and printValue().

◆ SCIPisUpdateUnreliable()

SCIP_Bool SCIPisUpdateUnreliable	(	SCIP *	scip,
		SCIP_Real	newvalue,
		SCIP_Real	oldvalue
	)

Checks, if an iteratively updated value is reliable or should be recomputed from scratch. This is useful, if the value, e.g., the activity of a linear constraint or the pseudo objective value, gets a high absolute value during the optimization process which is later reduced significantly. In this case, the last digits were canceled out when increasing the value and are random after decreasing it. We do not consider the cancellations which can occur during increasing the absolute value because they just cannot be expressed using fixed precision floating point arithmetic, anymore. In order to get more reliable values, the idea is to always store the last reliable value, where increasing the absolute of the value is viewed as preserving reliability. Then, after each update, the new absolute value can be compared against the last reliable one with this method, checking whether it was decreased by a factor of at least "lp/recompfac" and should be recomputed.

Parameters

scip	SCIP data structure
newvalue	new value after update
oldvalue	old value, i.e., last reliable value

Definition at line 1328 of file scip_numerics.c.

References FALSE, NULL, SCIP_CALL_ABORT, SCIPcheckStage(), SCIPsetIsUpdateUnreliable(), and TRUE.

Referenced by addConflictBounds(), consdataUpdateActivities(), convertLongEquality(), dualPresolve(), fullDualPresolve(), and tightenVarBounds().

◆ SCIPprintReal()

void SCIPprintReal	(	SCIP *	scip,
		FILE *	file,
		SCIP_Real	val,
		int	width,
		int	precision
	)

outputs a real number, or "+infinity", or "-infinity" to a file

Parameters

scip	SCIP data structure
file	output file (or NULL for standard output)
val	value to print
width	width of the field
precision	number of significant digits printed

Definition at line 377 of file scip_numerics.c.

References NULL, SCIP_MAXSTRLEN, SCIPmessageFPrintInfo(), SCIPsetIsInfinity(), and SCIPsnprintf().

Referenced by SCIPprintMIPStart(), SCIPprintSol(), and SCIPprintTransSol().

◆ SCIPparseReal()

SCIP_Bool SCIPparseReal	(	SCIP *	scip,
		const char *	str,
		SCIP_Real *	value,
		char **	endptr
	)

parse a real value that was written with SCIPprintReal()

Parameters

scip	SCIP data structure
str	string to search
value	pointer to store the parsed value
endptr	pointer to store the final string position if successfully parsed, otherwise `str`

Definition at line 404 of file scip_numerics.c.

References FALSE, NULL, SCIP_OKAY, SCIPinfinity(), SCIPskipSpace(), SCIPstrToRealValue(), and TRUE.

Referenced by SCIP_DECL_CONSPARSE(), SCIP_DECL_DIALOGEXEC(), SCIP_DECL_EXPRPARSE(), and SCIPprocessShellArguments().

SCIP

Detailed Description

Functions

Function Documentation

◆ SCIPepsilon()

◆ SCIPsumepsilon()

◆ SCIPfeastol()

◆ SCIPlpfeastol()

◆ SCIPdualfeastol()

◆ SCIPbarrierconvtol()

◆ SCIPcutoffbounddelta()

◆ SCIPrelaxfeastol()

◆ SCIPchgFeastol()

◆ SCIPchgLpfeastol()

◆ SCIPchgDualfeastol()

◆ SCIPchgBarrierconvtol()

◆ SCIPchgRelaxfeastol()

◆ SCIPmarkLimitChanged()

◆ SCIPinfinity()

◆ SCIPgetHugeValue()

◆ SCIPisEQ()

◆ SCIPisLT()

◆ SCIPisLE()

◆ SCIPisGT()

◆ SCIPisGE()

◆ SCIPisInfinity()

◆ SCIPisHugeValue()

◆ SCIPisZero()

◆ SCIPisPositive()

◆ SCIPisNegative()

◆ SCIPisIntegral()

◆ SCIPisScalingIntegral()

◆ SCIPisFracIntegral()

◆ SCIPfloor()

◆ SCIPceil()

◆ SCIPround()

◆ SCIPfrac()

◆ SCIPisSumEQ()

◆ SCIPisSumLT()

◆ SCIPisSumLE()

◆ SCIPisSumGT()

◆ SCIPisSumGE()

◆ SCIPisSumZero()

◆ SCIPisSumPositive()

◆ SCIPisSumNegative()

◆ SCIPisFeasEQ()

◆ SCIPisFeasLT()

◆ SCIPisFeasLE()

◆ SCIPisFeasGT()

◆ SCIPisFeasGE()

◆ SCIPisFeasZero()

◆ SCIPisFeasPositive()

◆ SCIPisFeasNegative()

◆ SCIPisFeasIntegral()

◆ SCIPisFeasFracIntegral()

◆ SCIPfeasFloor()

◆ SCIPfeasCeil()

◆ SCIPfeasRound()

◆ SCIPfeasFrac()

◆ SCIPisDualfeasEQ()

◆ SCIPisDualfeasLT()

◆ SCIPisDualfeasLE()

◆ SCIPisDualfeasGT()

◆ SCIPisDualfeasGE()

◆ SCIPisDualfeasZero()

◆ SCIPisDualfeasPositive()

◆ SCIPisDualfeasNegative()

◆ SCIPisDualfeasIntegral()

◆ SCIPisDualfeasFracIntegral()

◆ SCIPdualfeasFloor()

◆ SCIPdualfeasCeil()

◆ SCIPdualfeasRound()

◆ SCIPdualfeasFrac()

◆ SCIPisLbBetter()

◆ SCIPisUbBetter()

◆ SCIPisRelEQ()

◆ SCIPisRelLT()

◆ SCIPisRelLE()

◆ SCIPisRelGT()

◆ SCIPisRelGE()