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CUTEr >> CUTEr > ugr

ugr

unconstrained tool, gradient evaluation

Calling Sequence

g = ugr(X)

Parameters

X

real vector, variables of the problem

g

real vector, gradient at X

Description

ugr evaluates the gradien of the objective function of the current SIF problem (see usetup) at the point X, in the case where the only possible constraints are bound constraints.

See Also

Examples

sifdecode(get_sif_path()+'sif/AKIVA.SIF',TMPDIR+'/AKIVA')
buildprob(TMPDIR+'/AKIVA')
[X,BL,BU]=usetup(TMPDIR+'/AKIVA/OUTSDIF.d');

g=ugr(X)
X=[-0.053109827466;-0.237575444849];
g=ugr(X)

Authors

Bibliography

Based on CUTEr authored by

Nicholas I.M. Gould - n.gould@rl.ac.uk - RAL

Dominique Orban - orban@ece.northwestern.edu - Northwestern

Philippe L. Toint - Philippe.Toint@fundp.ac.be - FUNDP

see http://hsl.rl.ac.uk/cuter-www


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