HB/eris1176
SYMMETRIC PATTERN OF ERISMAN, SUMMER 1973
| Name |
eris1176 |
| Group |
HB |
| Matrix ID |
140 |
|
Num Rows
|
1,176 |
|
Num Cols
|
1,176 |
|
Nonzeros
|
18,552 |
|
Pattern Entries
|
18,552 |
|
Kind
|
Power Network Problem |
|
Symmetric
|
Yes |
|
Date
|
1973 |
|
Author
|
A. Erisman |
|
Editor
|
A. Curtis, I. Duff, J. Reid |
| Structural Rank |
1,176 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
2 |
|
Strongly Connect Components
|
2 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
yes |
|
Positive Definite
|
no |
|
Type
|
binary |
| SVD Statistics |
| Matrix Norm |
8.007389e+01 |
| Minimum Singular Value |
0 |
| Condition Number |
Inf
|
| Rank |
774 |
| sprank(A)-rank(A) |
402 |
| Null Space Dimension |
402 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
