HB/bcsstk25
SYMMETRIC STIFFNESS MATRIX - 76 STORY SKYSCRAPER
| Name |
bcsstk25 |
| Group |
HB |
| Matrix ID |
47 |
|
Num Rows
|
15,439 |
|
Num Cols
|
15,439 |
|
Nonzeros
|
252,241 |
|
Pattern Entries
|
252,241 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1984 |
|
Author
|
J. Lewis |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
15,439 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
13 |
|
Strongly Connect Components
|
13 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
yes |
|
Positive Definite
|
yes |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
1,060,020,504,396,416 |
| Minimum Singular Value |
2.401570e+02 |
| Condition Number |
4.413864e+12
|
| Rank |
15,435 |
| sprank(A)-rank(A) |
4 |
| Null Space Dimension |
4 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
