Initializing help system before first use

cp_get_linrelax

Purpose
Returns an automatic relaxation of the cp problem
Synopsis
function cp_get_linrelax(orientation: integer) : cplinrelax
function cp_get_linrelax(orientation: integer,constraints: set of integer) : cplinrelax
Arguments
orientation 
0 for an 'LP oriented' relaxation (convex hull) and 1 for a 'MIP oriented' relaxation (can be an exact representation of the underlying CP problem)
constraints 
the set of constraints types to relax ( KALIS_LINEAR_CONSTRAINTS, KALIS_LOGICAL_CONSTRAINTS, KALIS_DISTANCE_CONSTRAINTS, KALIS_NON_LINEAR_CONSTRAINTS, KALIS_ALL_CONSTRAINTS)
Return value
A linear relaxation
Example
The following example shows how to obtain a 'MIP oriented' relaxation by relaxing only the linear part of the problem and the logical constraints. 
relax := cp_get_linrelax(1,{KALIS_LINEAR_CONSTRAINTS,
                            KALIS_LOGICAL_CONSTRAINTS})
Related topics
get_linrelax_solver cp_add_linrelax_solver

Parent Topic Linear relaxations

© 2001-2025 Fair Isaac Corporation. All rights reserved. This documentation is the property of Fair Isaac Corporation (“FICO”). Receipt or possession of this documentation does not convey rights to disclose, reproduce, make derivative works, use, or allow others to use it except solely for internal evaluation purposes to determine whether to purchase a license to the software described in this documentation, or as otherwise set forth in a written software license agreement between you and FICO (or a FICO affiliate). Use of this documentation and the software described in it must conform strictly to the foregoing permitted uses, and no other use is permitted.