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problem.getQObj

Purpose
Returns a single quadratic objective function coefficient corresponding to the variable pair (objqcol1, objqcol2) of the Hessian matrix.
Topic areas
Problem Information, Quadratic
Synopsis
objqcoef = problem.getQObj(objqcol1, objqcol2)
Arguments
objqcol1 
Column index for the first variable in the quadratic term.
objqcol2 
Column index for the second variable in the quadratic term.
Return value
objqcoef 
The objective function coefficient.
Further information
1. objqcoef is the coefficient in the quadratic Hessian matrix. For example, if the objective function has the term [3x 1x 2 + 3x 2x 1]/2 the value retrieved by problem.getQObj is 3.0 and if the objective function has the term [6x 1 2]/2 the value retrieved by problem.getQObj is 6.0.
2. Arguments objqcol1, objqcol2 may contain xpress.var objects instead of indices.
Related topics
problem.getMQObj, problem.chgQObj, problem.chgMQObj.

Parent Topic Methods of the class problem

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