HB/watt_2
UNSYMMETRIC MATRIX FROM JOHN SOMERVILLE, HERIOT-WATT. DEC,1983 H
| Name |
watt_2 |
| Group |
HB |
| Matrix ID |
259 |
|
Num Rows
|
1,856 |
|
Num Cols
|
1,856 |
|
Nonzeros
|
11,550 |
|
Pattern Entries
|
11,550 |
|
Kind
|
Computational Fluid Dynamics Problem |
|
Symmetric
|
No |
|
Date
|
1983 |
|
Author
|
J. Somerville |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
1,856 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
65 |
|
Strongly Connect Components
|
65 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
98% |
|
Numeric Symmetry
|
96.7% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
8.000000e+00 |
| Minimum Singular Value |
5.870212e-11 |
| Condition Number |
1.362813e+11
|
| Rank |
1,856 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
