Initializing help system before first use

QCONSTRAINTS

Description
Number of rows with quadratic coefficients in the matrix.
Type
Integer
Topic areas
Problem Information, Quadratic
Note
If the matrix is in a presolved state, this attribute returns the number of rows with quadratic coefficients in the presolved matrix. If you require the value for the original matrix then use the ORIGINALQCONSTRAINTS attribute instead. The PRESOLVESTATE attribute can be used to test if the matrix is presolved or not. See also Working with Presolve.
Set by routines
XPRSaddqmatrix, XPRSdelqmatrix, XPRSchgqrowcoeff, XPRSloadlp, XPRSloadmip, XPRSloadqp, XPRSloadqcqp, XPRSloadmiqp, XPRSloadmiqcqp, XPRSreadprob.
See also
QCELEMS, ORIGINALQCONSTRAINTS.
Category
Attribute

Parent Topic Problem Attributes

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