HB/lock2232
FINITE ELEMENT PROBLEM. LOCKHEED TOWER PROBLEM
| Name |
lock2232 |
| Group |
HB |
| Matrix ID |
1179 |
|
Num Rows
|
2,232 |
|
Num Cols
|
2,232 |
|
Nonzeros
|
80,352 |
|
Pattern Entries
|
80,352 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1980 |
|
Author
|
W. Loden |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
2,208 |
| Structural Rank Full |
false |
|
Num Dmperm Blocks
|
3 |
|
Strongly Connect Components
|
25 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
binary |
| SVD Statistics |
| Matrix Norm |
4.035526e+01 |
| Minimum Singular Value |
0 |
| Condition Number |
Inf
|
| Rank |
368 |
| sprank(A)-rank(A) |
1,840 |
| Null Space Dimension |
1,864 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
