XPRBgetqcoeff
XPRBgetqcoeff |
Purpose
Synopsis
double XPRBgetqcoeff(XPRBctr ctr, XPRBvar var1, XPRBvar var2);
Arguments
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ctr
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BCL reference to a previously created constraint.
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var1
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BCL reference to a variable.
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var2
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BCL reference to a variable (not necessarily different from first variable).
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Return value
Coefficient of the variable in the specified constraint or 0 if the variable does not occur.
Example
XPRBprob expl2;
XPRBctr ctr1;
XPRBvar x1;
double val;
...
expl2 = XPRBnewprob("example2");
x1 = XPRBnewvar(expl2, XPRB_UI, "abc3", 0, 100);
ctr1 = XPRBnewctr(expl2, "r1", XPRB_E);
XPRBaddqterm(ctr1, x1, x1, 5.4);
val = XPRBgetqcoeff(ctr1, x1, x1);
This retrieves the coefficient of the quadratic term
x1*x1 in the constraint
ctr1.
Further information
This function returns the coefficient of a given quadratic term
var1*var2 in the constraint
ctr. Return value 0 indicates that the term is not contained in the constraint.
Related topics