Utility function used with umf_lufact (original) (raw)

Scilab 5.3.3

• Scilab help
• UMFPACK Interface (sparse)
• PlotSparse
• ReadHBSparse
• cond2sp
• condestsp
• rafiter
• res_with_prec
• taucs_chdel
• taucs_chfact
• taucs_chget
• taucs_chinfo
• taucs_chsolve
• taucs_license
• umf_license
• umf_ludel
• umf_lufact
• umf_luget
• umf_luinfo
• umf_lusolve
• umfpack

Please note that the recommended version of Scilab is 2026.0.1. This page might be outdated.
See the recommended documentation of this function

Scilab help >> UMFPACK Interface (sparse) > umf_ludel

umf_ludel

utility function used with umf_lufact

Calling Sequence

umf_ludel(LU_ptr) or umf_ludel()

Arguments

LU_ptr

a pointer to an handle of umf lu factors (L,U,p,q,R)

Description

This function must be used in conjunction with umf_lufact and umf_lusolve. It clears the internal memory space used to store the LU factors (got with umf_lufact). Use without argument it frees the memory for all the current scilab umfpack LU factors.

See Also

• umfpack — solve sparse linear system
• umf_lufact — lu factorisation of a sparse matrix
• umf_lusolve — solve a linear sparse system given the LU factors
• umf_luget — retrieve lu factors at the scilab level
• umf_luinfo — get information on LU factors

Authors

• umfpack by Timothy A. Davis (see umf_license)
• scilab interface by Bruno Pincon