GHS_psdef/ford1
Gould, Hu, & Scott: car surface mesh, from Pothen & Kumfert
| Name |
ford1 |
| Group |
GHS_psdef |
| Matrix ID |
1262 |
|
Num Rows
|
18,728 |
|
Num Cols
|
18,728 |
|
Nonzeros
|
101,576 |
|
Pattern Entries
|
101,576 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
2004 |
|
Author
|
G. Kumfert, A. Pothen |
|
Editor
|
N. Gould, Y. Hu, J. Scott |
| Structural Rank |
18,728 |
| 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 |
1.397052e+01 |
| Minimum Singular Value |
7.196077e-50 |
| Condition Number |
1.941408e+50
|
| Rank |
18,194 |
| sprank(A)-rank(A) |
534 |
| Null Space Dimension |
534 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
