Initializing help system before first use

AddCols Method (Int32, Int64, Double[], Int64[], Int32[], Double[], Double[], Double[])

Adds columns to the optimizer matrix.

Namespace:   Optimizer
Assembly:  xprsdn (in xprsdn.dll) Version: 44.01.04
Syntax
C#
public void AddCols(
	int ncols,
	long ncoefs,
	double[] objcoef,
	long[] start,
	int[] rowind,
	double[] rowcoef,
	double[] lb,
	double[] ub
)

Parameters

ncols
Type:  System.Int32
Number of new columns.
ncoefs
Type:  System.Int64
Number of new nonzeros in the added columns.
objcoef
Type:  System.Double
Double array of length ncols containing the objective function coefficients of the new columns. As of version 43.00 this can be null to indicate that all newly created variables have an objective coefficient of 0 (zero).
start
Type:  System.Int64
Integer array of length ncols containing the offsets in the rowind and rowcoef arrays of the start of the elements for each column. This can be null if the ncols or the ncoefs argument is 0 (zero).
rowind
Type:  System.Int32
Integer array of length ncoefs containing the row indices for the elements in each column.
rowcoef
Type:  System.Double
Double array of length ncoefs containing the element values.
lb
Type:  System.Double
Double array of length ncols containing the lower bounds on the added columns. This can be null in which case all variables will have a lower bound of 0.
ub
Type:  System.Double
Double array of length ncols containing the upper bounds on the added columns. This can be null in which hcase all variables will have an infinite upper bound.
Remarks
This function is used in the following examples:
  • GoalProg
See Also

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