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XSLPgetcoef

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Purpose

Retrieve a single matrix coefficient as a formula split into tokens

Synopsis

int XPRS_CC XSLPgetcoef(XSLPprob Prob, int RowIndex, int ColIndex, double *Factor, int Parsed, int *Type, double *Value);

Arguments

Prob	The current SLP problem.
RowIndex	Integer holding the row index for the coefficient. This respects the setting of XPRS_CSTYLE.
ColIndex	Integer holding the column index for the coefficient. This respects the setting of XPRS_CSTYLE.
Factor	Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.
Parsed	Integer indicating whether the formula of the item is to be returned in internal unparsed format (Parsed=0) or parsed (reverse Polish) format (Parsed=1).
Type	Integer array to hold the token types for the formula.
Value	Double array of values corresponding to Type.

Example

The following example displays the formula for the coefficient in row 2, column 3 in unparsed form:

int n, Type[10];
double Value[10];

XSLPgetcoef(Prob, 2, 3, &Factor, 0, Type, Value);

for (n=0;Type[n] != XSLP_EOF;n++) 
  printf("\nType=%-3d  Value=%lg",Type[n],Value[n]);

Further information

The Type and Value arrays are terminated by an XSLP_EOF token.

If the requested coefficient is constant, then Factor will be set to 1.0 and the value will be returned with token type XSLP_CON.

Related topics

XSLPchgccoef, XSLPchgcoef, XSLPgetccoef

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