Initializing help system before first use

# problem.chgqrowcoeff

Purpose
This subroutine is deprecated and will be removed in a future release. Use problem.chgQRowCoeff instead.
Changes a single quadratic coefficient in a row.
Synopsis
`problem.chgqrowcoeff(row, rowqcol1, rowqcol2, rowqcoef)`
Arguments

row | Row (i.e., xpress.constraint object, index, or name) 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
1. 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 problem.addQMatrix.
2. The row must not be an equality or a ranged row.
Related topics
problem.loadproblem, problem.getQRowCoeff, problem.addQMatrix, problem.chgQRowCoeff, problem.getQRowQMatrix, problem.getQRowQMatrixTriplets, problem.getQRows, problem.chgQObj, problem.chgMQObj, problem.getQObj.
Parent Topic Deprecated functionality

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