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# problem.getqrowqmatrixtriplets

Purpose
This subroutine is deprecated and will be removed in a future release. Use problem.getQRowQMatrixTriplets instead.
Returns the nonzeros in a quadratic constraint coefficients matrix as triplets (index pairs with coefficients). To achieve maximum efficiency, getqrowqmatrixtriplets returns the lower triangular part of this matrix only.
Synopsis
`problem.getqrowqmatrixtriplets(row, rowqcol1, rowqcol2, rowqcoef)`
Arguments

row | Row (i.e., xpress.constraint object, index, or name) for which the quadratic coefficients are to be returned.
rowqcol1 | First index in the triplets. May be None if not required.
rowqcol2 | Second index in the triplets. May be None if not required.
rowqcoef | Coefficients in the triplets. May be None if not required.

Further information
If a row index of -1 is used, the function returns the quadratic coefficients for the objective function.
Related topics
problem.loadproblem, problem.getQRowCoeff, problem.addQMatrix, problem.chgQRowCoeff, problem.getQRowQMatrix, problem.getQRows, problem.chgQObj, problem.chgMQObj, problem.getQObj, problem.getQRowQMatrixTriplets.
Parent Topic Deprecated functionality

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