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XSLPevaluateformula, XPRSnlpevaluateformula

Purpose
Evaluate a formula using the current values of the variables
Topic area
Solution
Synopsis
int XPRS_CC XSLPevaluateformula(XSLPprob prob, int parsed, const int[] type, const double[] values, double *p_value);
Arguments
prob 
The current SLP problem.
parsed 
integer indicating whether the formula of the item is in internal unparsed format ( parsed=0) or parsed (reverse Polish) format ( parsed=1).
type 
Integer array of token types for the formula.
values 
Double array of values corresponding to type.
p_value 
Address of a double precision value to receive the result of the calculation.
Example
The following example calculates the value of column 3 divided by column 6. 
int n, type[10];
double value, values[10];

n = 0;
type[n] = XSLP_COL; values[n++] = 3;
type[n] = XSLP_COL; values[n++] = 6;
type[n] = XSLP_OP;  values[n++] = XSLP_DIVIDE;
type[n++] = XSLP_EOF;

XSLPevaluateformula(prob, 1, type, values, &value);

Further information

The formula in type and values must be terminated by an XSLP_EOF token.

The formula cannot include "complicated" functions, such as user functions which return more than one value


Related topics
XSLPevaluatecoef

Parent Topic Library functions

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