2 #include <gsl/gsl_linalg.h>
7 double a_data[] = { 0.18, 0.60, 0.57, 0.96,
8 0.41, 0.24, 0.99, 0.58,
9 0.14, 0.30, 0.97, 0.66,
10 0.51, 0.13, 0.19, 0.85 };
12 double b_data[] = { 1.0, 2.0, 3.0, 4.0 };
15 = gsl_matrix_view_array (a_data, 4, 4);
18 = gsl_vector_view_array (b_data, 4);
20 gsl_vector *x = gsl_vector_alloc (4);
24 gsl_permutation * p = gsl_permutation_alloc (4);
26 gsl_linalg_LU_decomp (&m.matrix, p, &s);
28 gsl_linalg_LU_solve (&m.matrix, p, &b.vector, x);
31 gsl_vector_fprintf (stdout, x, "%g");
33 gsl_permutation_free (p);