HB/can_268
SYMMETRIC PATTERN FROM CANNES,LUCIEN MARRO,JUNE 1981.
| Name |
can_268 |
| Group |
HB |
| Matrix ID |
99 |
|
Num Rows
|
268 |
|
Num Cols
|
268 |
|
Nonzeros
|
3,082 |
|
Pattern Entries
|
3,082 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1981 |
|
Author
|
L. Marro |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
268 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
1 |
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
yes |
|
Positive Definite
|
no |
|
Type
|
binary |
| SVD Statistics |
| Matrix Norm |
1.445894e+01 |
| Minimum Singular Value |
2.406444e-33 |
| Condition Number |
6.008425e+33
|
| Rank |
261 |
| sprank(A)-rank(A) |
7 |
| Null Space Dimension |
7 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
