HB/jpwh_991
UNSYMMETRIC MATRIX FROM PHILIPS LTD, J.P.WHELAN,1978.
| Name |
jpwh_991 |
| Group |
HB |
| Matrix ID |
187 |
|
Num Rows
|
991 |
|
Num Cols
|
991 |
|
Nonzeros
|
6,027 |
|
Pattern Entries
|
6,027 |
|
Kind
|
Semiconductor Device Problem |
|
Symmetric
|
No |
|
Date
|
1978 |
|
Author
|
J. Whelan |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
991 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
146 |
|
Strongly Connect Components
|
146 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
93.6% |
|
Numeric Symmetry
|
93.6% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
integer |
| SVD Statistics |
| Matrix Norm |
1.629198e+01 |
| Minimum Singular Value |
1.146959e-01 |
| Condition Number |
1.420450e+02
|
| Rank |
991 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
