Example program for zpbrfs
This example solves the system of equations
A
X
=
B
using iterative refinement and to compute the forward and backward error bounds, where
A
=
9.39
+
0.00
i
1.08
-
1.73
i
0.00
+
0.00
i
0.00
+
0.00
i
1.08
+
1.73
i
1.69
+
0.00
i
-
0.04
+
0.29
i
0.00
+
0.00
i
0.00
+
0.00
i
-
0.04
-
0.29
i
2.65
+
0.00
i
-
0.33
+
2.24
i
0.00
+
0.00
i
0.00
+
0.00
i
-
0.33
-
2.24
i
2.17
+
0.00
i
and
B
=
-
12.42
+
68.42
i
54.30
-
56.56
i
-
9.93
+
0
0.88
i
18.32
+
0
4.76
i
-
27.30
-
0
0.01
i
-
4.40
+
0
9.97
i
5.31
+
23.63
i
9.43
+
0
1.41
i
.
Here
A
is Hermitian positive definite, and is treated as a band matrix, which must first be factorized by
zpbtrf
.
f90 source code
Input data file
Expected results