TKK/tube2
Tube problem from R. Kouhia
| Name |
tube2 |
| Group |
TKK |
| Matrix ID |
1915 |
|
Num Rows
|
21,498 |
|
Num Cols
|
21,498 |
|
Nonzeros
|
897,056 |
|
Pattern Entries
|
897,056 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
2008 |
|
Author
|
R. Kouhia |
|
Editor
|
T. Davis |
| Structural Rank |
21,498 |
| 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
|
integer |
| SVD Statistics |
| Matrix Norm |
1.730289e+02 |
| Minimum Singular Value |
4.054712e-202 |
| Condition Number |
4.267355e+203
|
| Rank |
3,583 |
| sprank(A)-rank(A) |
17,915 |
| Null Space Dimension |
17,915 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
| Download |
MATLAB
Rutherford Boeing
Matrix Market
|
| Notes |
Matrix problems from Reijo Kouhia, Structural Mechanics, Helsinki
University of Technology. http://users.tkk.fi/~kouhia/sparse.html
|
