Scippy

SCIP

Solving Constraint Integer Programs

sepa_rlt.h
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1/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2/* */
3/* This file is part of the program and library */
4/* SCIP --- Solving Constraint Integer Programs */
5/* */
6/* Copyright (c) 2002-2024 Zuse Institute Berlin (ZIB) */
7/* */
8/* Licensed under the Apache License, Version 2.0 (the "License"); */
9/* you may not use this file except in compliance with the License. */
10/* You may obtain a copy of the License at */
11/* */
12/* http://www.apache.org/licenses/LICENSE-2.0 */
13/* */
14/* Unless required by applicable law or agreed to in writing, software */
15/* distributed under the License is distributed on an "AS IS" BASIS, */
16/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
17/* See the License for the specific language governing permissions and */
18/* limitations under the License. */
19/* */
20/* You should have received a copy of the Apache-2.0 license */
21/* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
22/* */
23/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24
25/**@file sepa_rlt.h
26 * @ingroup SEPARATORS
27 * @brief reformulation-linearization technique separator
28 * @author Fabian Wegscheider
29 * @author Ksenia Bestuzheva
30 *
31 *
32 * This separator generates a collection of cuts constructed by the reformulation-linearization technique (RLT).
33 * For an LP row L and a variable x in [lb,ub], L is multiplied either with (ub-x) or with (x-lb). All known terms that
34 * appear in the product are replaced by their respective auxiliary variable and all unknown terms are replaced by a
35 * suitable linear relaxation, e.g., McCormick. In general, the separator computes four different cuts for a row with
36 * finite sides and a variable with finite bounds.
37 */
38
39/*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
40
41#ifndef __SCIP_SEPA_RLT_H__
42#define __SCIP_SEPA_RLT_H__
43
44
45#include "scip/scip.h"
46
47#ifdef __cplusplus
48extern "C" {
49#endif
50
51/** creates the RLT separator and includes it in SCIP
52 *
53 * @ingroup SeparatorIncludes
54 */
55SCIP_EXPORT
57 SCIP* scip /**< SCIP data structure */
58);
59
60/**@addtogroup SEPARATORS
61 *
62 * @{
63 */
64
65/** @} */
66
67#ifdef __cplusplus
68}
69#endif
70
71#endif
SCIP_RETCODE SCIPincludeSepaRlt(SCIP *scip)
Definition: sepa_rlt.c:3299
SCIP callable library.
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63