Initializing help system before first use

DelCuts Method (Int32, Int32, Int32, Double, Int32, Cut[])

Deletes cuts from the matrix at the current node. Cuts from the parent node which have been automatically restored may be deleted as well as cuts added to the current node using addCuts or loadCuts. The cuts to be deleted can be specified in a number of ways. If a cut is ruled out by any one of the criteria it will not be deleted.

Namespace:   Optimizer
Assembly:  xprsdn (in xprsdn.dll) Version: 44.01.01
Syntax
C# 
public void DelCuts(
	int basis,
	int cuttype,
	int interp,
	double delta,
	int ncuts,
	Cut[] cutind
)

Parameters

basis
Type:  System.Int32
Ensures the basis will be valid if set to 1. If set to 0, cuts with non-basic slacks may be deleted.
cuttype
Type:  System.Int32
User defined type of the cut to be deleted.
interp
Type:  System.Int32
Way in which the cut cuttype is interpreted:
  • -1: match all cut types;
  • 1: treat cut types as numbers;
  • 2: treat cut types as bit maps - delete if any bit matches any bit set in cuttype;
  • 3: treat cut types as bit maps - delete if all bits match those set in cuttype.
delta
Type:  System.Double
Only delete cuts with an absolute slack value greater than delta. To delete all the cuts, this argument should be set to XPRS_MINUSINFINITY.
ncuts
Type:  System.Int32
Number of cuts to drop if a list of cuts is provided. A value of -1 indicates all cuts.
cutind
Type:  Optimizer.Cut
Array containing pointers to the cuts which are to be deleted. This array may be null if ncuts is set to -1 otherwise it has length ncuts.
Remarks
See Also
Parent Topic DelCuts Method

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