Default expression handlers

Detailed Description

implementation files (.c files) of the default expression handlers of SCIP

Files
file	expr_abs.c
	absolute expression handler
file	expr_entropy.c
	handler for -x*log(x) expressions
file	expr_exp.c
	exponential expression handler
file	expr_log.c
	logarithm expression handler
file	expr_pow.c
	power expression handler
file	expr_product.c
	product expression handler
file	expr_sum.c
	sum expression handler
file	expr_trig.c
	handler for sine and cosine expressions
file	expr_value.c
	constant value expression handler
file	expr_var.c
	variable expression handler
file	expr_varidx.c
	handler for variable index expressions