nag_sparse_complex_herm_precon_ichol (f11jnc) Example Program Results
Original Matrix
n = 7, nnz = 16
i a[i] irow[i] icol[i]
0 ( 6.0000e+00, 0.0000e+00) 1 1
1 ( 1.0000e+00, -2.0000e+00) 2 1
2 ( 9.0000e+00, 0.0000e+00) 2 2
3 ( 4.0000e+00, 0.0000e+00) 3 3
4 ( 2.0000e+00, 2.0000e+00) 4 2
5 ( 5.0000e+00, 0.0000e+00) 4 4
6 ( 0.0000e+00, -1.0000e+00) 5 1
7 ( 1.0000e+00, 0.0000e+00) 5 4
8 ( 4.0000e+00, 0.0000e+00) 5 5
9 ( 1.0000e+00, 3.0000e+00) 6 2
10 ( 0.0000e+00, -2.0000e+00) 6 5
11 ( 3.0000e+00, 0.0000e+00) 6 6
12 ( 2.0000e+00, 1.0000e+00) 7 1
13 ( -1.0000e+00, 0.0000e+00) 7 2
14 ( -3.0000e+00, -1.0000e+00) 7 3
15 ( 5.0000e+00, 0.0000e+00) 7 7
Factorization
n = 7, nnzc = 16, npivm = 0
i a[i] irow[i] icol[i]
16 ( 2.5000e-01, -0.0000e+00) 1 1
17 ( 2.0000e-01, -0.0000e+00) 2 2
18 ( 2.0000e-01, 0.0000e+00) 3 2
19 ( 2.6316e-01, -0.0000e+00) 3 3
20 ( 0.0000e+00, -5.2632e-01) 4 3
21 ( 5.1351e-01, -0.0000e+00) 4 4
22 ( 0.0000e+00, 2.6316e-01) 5 3
23 ( 1.7431e-01, -0.0000e+00) 5 5
24 ( -7.5000e-01, -2.5000e-01) 6 1
25 ( 3.4862e-01, 1.7431e-01) 6 5
26 ( 6.1408e-01, -0.0000e+00) 6 6
27 ( 4.0000e-01, -4.0000e-01) 7 2
28 ( 5.1351e-01, -1.5405e+00) 7 4
29 ( 1.7431e-01, -3.4862e-01) 7 5
30 ( -6.1408e-01, 5.3521e-01) 7 6
31 ( 3.1974e+00, -0.0000e+00) 7 7
i ipiv[i-1]
1 3
2 4
3 5
4 6
5 1
6 7
7 2