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# problem.slpGetCoefStr

Purpose
Retrieve a single matrix coefficient as a formula in a character string. For a simpler version of this function see problem.nlpGetFormulaStr.
Topic areas
SLP, Problem Information, Nonlinear
Synopsis
`factor, formula = problem.slpGetCoefStr(row, col)`
Arguments

row: constraint | Integer holding the row index for the coefficient.
col: var | Integer holding the column index for the coefficient.

Return value

factor: float | A double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.
formula: str | Character buffer containing the formula in the same format as used for input from a file.

Further information
1. If the requested coefficient is constant, then factor will be set to 1.0 and the value will be formatted in formula.
2. Argument row may contain either xpress.constraint objects or integer indices.
3. Argument col may contain either xpress.var objects or integer indices.
Related topics
problem.nlpGetFormulaStr, problem.nlpAddFormulas, problem.nlpChgFormulaStr, problem.nlpChgFormula, problem.nlpLoadFormulas, problem.nlpGetFormulaRows, problem.nlpGetFormula, problem.nlpDelFormulas
Parent Topic Xpress problem object methods

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