Initializing help system before first use

# problem.presolve

Purpose
This subroutine is deprecated and will be removed in a future release.
Perform a nonlinear presolve on the problem
Synopsis
`problem.presolve()`
Example
The following example reads a problem from file, sets the presolve control, presolves the problem and then maximizes it.

    p.readprob("Matrix", "")
    p.controls.xslp_presolve = 1
    p.presolve()
    p.optimize("")

Further information

If bit 1 of xslp_presolve is not set, no nonlinear presolve will be performed. Otherwise, the presolve will be performed in accordance with the bit settings. problem.presolve is called automatically by problem.slpConstruct, so there is no need to call it explicitly unless there is a requirement to interrupt the process between presolve and optimization. problem.presolve must be called before problem.slpConstruct or any of the SLP optimization procedures.

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Related topics
xslp_presolve
Parent Topic Deprecated functionality

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