Rothberg/struct4
Finite element matrix, from Ed Rothberg, Silicon Graphics, Inc.
| Name |
struct4 |
| Group |
Rothberg |
| Matrix ID |
808 |
|
Num Rows
|
4,350 |
|
Num Cols
|
4,350 |
|
Nonzeros
|
237,798 |
|
Pattern Entries
|
237,798 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1997 |
|
Author
|
E. Rothberg |
|
Editor
|
T. Davis |
| Structural Rank |
4,350 |
| 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 |
7.194731e+01 |
| Minimum Singular Value |
9.939085e-04 |
| Condition Number |
7.238826e+04
|
| Rank |
4,350 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
