nag_sparse_sym_chol_fac (f11jac) Example Program Results
Original Matrix
n = 7
nnz = 16
1 4.0000e+00 1 1
2 1.0000e+00 2 1
3 5.0000e+00 2 2
4 2.0000e+00 3 3
5 2.0000e+00 4 2
6 3.0000e+00 4 4
7 -1.0000e+00 5 1
8 1.0000e+00 5 4
9 4.0000e+00 5 5
10 1.0000e+00 6 2
11 -2.0000e+00 6 5
12 3.0000e+00 6 6
13 2.0000e+00 7 1
14 -1.0000e+00 7 2
15 -2.0000e+00 7 3
16 5.0000e+00 7 7
Factorization
n = 7
nnz = 16
npivm = 0
17 5.0000e-01 1 1
18 3.3333e-01 2 2
19 3.3333e-01 3 2
20 2.7273e-01 3 3
21 -5.4545e-01 4 3
22 5.2381e-01 4 4
23 -2.7273e-01 5 3
24 2.6829e-01 5 5
25 6.6667e-01 6 2
26 5.2381e-01 6 4
27 2.6829e-01 6 5
28 3.4788e-01 6 6
29 -1.0000e+00 7 1
30 5.3659e-01 7 5
31 -5.3455e-01 7 6
32 9.0461e-01 7 7
i ipiv(i)
1 3
2 4
3 5
4 6
5 1
6 2
7 7