
Preconditioner for 1-D Laplacian, n=10

With default shift
Vec Object: 1 MPI processes
  type: seq
5.
9.
12.
14.
15.
15.
14.
12.
9.
5.
With shift=0.1
Vec Object: 1 MPI processes
  type: seq
-18.0797
-35.3515
-50.0881
-60.8159
-66.4621
-66.4621
-60.8159
-50.0881
-35.3515
-18.0797
With user-provided matrix
Vec Object: 1 MPI processes
  type: seq
1.
1.
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
