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# getqrowqmatrixtriplets

Purpose
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
`getqrowqmatrixtriplets(prob, row)`
Arguments

prob | The current problem.
row | Index of the row for which the quadratic coefficients are to be returned.

Return value
A list with the following elements:

ncoefs
  Argument used to return the number of quadratic coefficients in the row.
rowqcol1
  First index in the triplets.
rowqcol2
  Second index in the triplets.
rowqcoef
  Coefficients in the triplets.

Further information
Please refer to the C documentation for more details.
Parent Topic R interface reference manual

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