Initializing help system before first use

# XPRScalcslacks

Purpose
Calculates the row slack values for a given solution.
Topic area
Solution
Synopsis
`int XPRS_CC XPRScalcslacks(XPRSprob prob, const double solution[], double slacks[]);`
Arguments

prob | The current problem.
solution | Double array of length ORIGINALCOLS that holds the solution to calculate the slacks for.
slacks | Double array of length ORIGINALROWS in which the calculated row slacks are returned.

Further information
1. This function applies to linear and convex quadratic (including second order conic) problems only. For nonlinear, please use XPRSnlpcalcslacks.
2. The calculations are always carried out in the original problem, even if the problem is currently presolved.
3. If using the function during a solve (e.g. from a callback), use ORIGINALCOLS and ORIGINALROWS to retrieve the non-presolved dimensions of the problem.
Related topics
XPRScalcreducedcosts, XPRScalcsolinfo, XPRScalcobjective, XPRSnlpcalcslacks.
Parent Topic Console and Library Functions

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