Scilab Function ush - unconstrained tool, evaluated the objective Hessian in sparse
format.
Calling Sequence
- [SH,ICNH,IRNH,SP] = ush(X)
Parameters
- X
: real vector, variables of the problem
- SH
: real vector, Hessian coefficiants. SH(i) gives the value of the
nonzero in row IRNH(i) and column ICNH(i). Only the upper triangular
part of the Hessian is stored.
- ICNH
: vector of column indices of the nonzeros of the Hessian matrix.
- IRNH
: vector of row indices of the nonzeros of the Hessian matrix.
- SP
: Hessain matrix stored in scilab sparse format.
Description
ush evaluates the Hessian matrix of the objective function of the problem
decoded into OUTSDIF.d at the point X in the case where the only
possible constraints are bound constraints. This Hessian matrix is
stored as a sparse matrix in coordinate format.
Examples
Add here scilab instructions and comments
Author
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