HB/gre_115
UNSYMMETRIC MATRIX FROM GRENOBLE,FRANCOIS CACHARD,MARCH 1981.
| Name |
gre_115 |
| Group |
HB |
| Matrix ID |
161 |
|
Num Rows
|
115 |
|
Num Cols
|
115 |
|
Nonzeros
|
421 |
|
Pattern Entries
|
421 |
|
Kind
|
Directed Weighted Graph |
|
Symmetric
|
No |
|
Date
|
1981 |
|
Author
|
F. Cachard |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
|
| Structural Rank Full |
|
|
Num Dmperm Blocks
|
|
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
25.5% |
|
Numeric Symmetry
|
0% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
1.046669e+00 |
| Minimum Singular Value |
2.107206e-02 |
| Condition Number |
4.967094e+01
|
| Rank |
115 |
| sprank(A)-rank(A) |
|
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
