HB/can_256
SYMMETRIC PATTERN FROM CANNES,LUCIEN MARRO,JUNE 1981.
| Name |
can_256 |
| Group |
HB |
| Matrix ID |
98 |
|
Num Rows
|
256 |
|
Num Cols
|
256 |
|
Nonzeros
|
2,916 |
|
Pattern Entries
|
2,916 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1981 |
|
Author
|
L. Marro |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
256 |
| 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 |
1.603740e+01 |
| Minimum Singular Value |
7.073837e-17 |
| Condition Number |
2.267144e+17
|
| Rank |
250 |
| sprank(A)-rank(A) |
6 |
| Null Space Dimension |
6 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
