XSLPchgdeltatype

Purpose

Changes the type of the delta assigned to a nonlinear variable

Synopsis

int XPRS_CC XSLPchgdeltatype(XSLPprob Prob, int nVar, int Vars[], int DeltaTypes[], double Values[]);

Arguments

Prob

The current SLP problem.

nVar

The number of SLP variables to change the delta type for.

Vars

Indices of the variables to change the deltas for.

DeltaTypes

Type if the delta variable:

0	Differentiable variable, default.
1	Variable defined over the grid size given in Values.
2	Variable where a minimum perturbation size given in Values may be required before a significant change in the problem is achieved.
3	Variable where a meaningful step size should automatically be detected, with an upper limit given in Values.

Values

Grid or minimum step sizes for the variables.

Further information

Changing the delta type of a variables makes the variable nonlinear.