Mercurial > octave-nkf
view liboctave/UMFPACK/UMFPACK/Demo/umfpack_simple.c @ 5164:57077d0ddc8e
[project @ 2005-02-25 19:55:24 by jwe]
author | jwe |
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date | Fri, 25 Feb 2005 19:55:28 +0000 |
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/* -------------------------------------------------------------------------- */ /* UMFPACK Version 4.4, Copyright (c) 2005 by Timothy A. Davis. CISE Dept, */ /* Univ. of Florida. All Rights Reserved. See ../Doc/License for License. */ /* web: http://www.cise.ufl.edu/research/sparse/umfpack */ /* -------------------------------------------------------------------------- */ #include <stdio.h> #include "umfpack.h" int n = 5 ; int Ap [ ] = {0, 2, 5, 9, 10, 12} ; int Ai [ ] = { 0, 1, 0, 2, 4, 1, 2, 3, 4, 2, 1, 4} ; double Ax [ ] = {2., 3., 3., -1., 4., 4., -3., 1., 2., 2., 6., 1.} ; double b [ ] = {8., 45., -3., 3., 19.} ; double x [5] ; int main (void) { double *null = (double *) NULL ; int i ; void *Symbolic, *Numeric ; (void) umfpack_di_symbolic (n, n, Ap, Ai, Ax, &Symbolic, null, null) ; (void) umfpack_di_numeric (Ap, Ai, Ax, Symbolic, &Numeric, null, null) ; umfpack_di_free_symbolic (&Symbolic) ; (void) umfpack_di_solve (UMFPACK_A, Ap, Ai, Ax, x, b, Numeric, null, null) ; umfpack_di_free_numeric (&Numeric) ; for (i = 0 ; i < n ; i++) printf ("x [%d] = %g\n", i, x [i]) ; return (0) ; }