Example program for dgbtrs
This example solves the system of equations
A
X
=
B
, where
A
=
-
0.23
2.54
-
3.66
0.00
-
6.98
2.46
-
2.73
-
2.13
0.00
2.56
2.46
4.07
0.00
0.00
-
4.78
-
3.82
and
B
=
4.42
-
36.01
27.13
-
31.67
-
6.14
-
1.16
10.50
-
25.82
.
Here
A
is nonsymmetric and is treated as a band matrix, which must first be factorized by
dgbtrf
.
f90 source code
Input data file
Expected results