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XPRSchgqrowcoeff

Purpose
Changes a single quadratic coefficient in a row.
Topic areas
Problem Modification, Quadratic
Synopsis
int XPRS_CC XPRSchgqrowcoeff(XPRSprob prob, int row, int rowqcol1, int rowqcol2, double rowqcoef);
Arguments
prob 
The current problem.
row 
Index of the row where the quadratic matrix is to be changed.
rowqcol1 
First index of the coefficient to be changed.
rowqcol2 
Second index of the coefficient to be changed.
rowqcoef 
The new coefficient.
Further information
This function may be used to add new nonzero coefficients, or even to define the whole quadratic expression with it. Doing that, however, is significantly less efficient than adding the whole expression with XPRSaddqmatrix.
Related topics
XPRSloadqcqp, XPRSgetqrowcoeff, XPRSaddqmatrix, XPRSchgqrowcoeff, XPRSgetqrowqmatrix, XPRSgetqrowqmatrixtriplets, XPRSgetqrows, XPRSchgqobj, XPRSchgmqobj, XPRSgetqobj.

Parent Topic Console and Library Functions

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