HB/lns_3937
UNSYMMETRIC MATRIX FROM I.P.J. DEC 1982. LINEARIZED N-S. COMPRESSIBLE
| Name |
lns_3937 |
| Group |
HB |
| Matrix ID |
189 |
|
Num Rows
|
3,937 |
|
Num Cols
|
3,937 |
|
Nonzeros
|
25,407 |
|
Pattern Entries
|
25,407 |
|
Kind
|
Computational Fluid Dynamics Problem |
|
Symmetric
|
No |
|
Date
|
1982 |
|
Author
|
I. Jones |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
3,937 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
351 |
|
Strongly Connect Components
|
290 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
85% |
|
Numeric Symmetry
|
0.1% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
3.266182e+11 |
| Minimum Singular Value |
1.634126e-05 |
| Condition Number |
1.998733e+16
|
| Rank |
2,895 |
| sprank(A)-rank(A) |
1,042 |
| Null Space Dimension |
1,042 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
