Boeing/msc23052
SYMMETRIC TEST MATRIX FROM MSC/NASTRAN SHOCKF8.OUT2
| Name |
msc23052 |
| Group |
Boeing |
| Matrix ID |
362 |
|
Num Rows
|
23,052 |
|
Num Cols
|
23,052 |
|
Nonzeros
|
1,142,686 |
|
Pattern Entries
|
1,154,814 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1995 |
|
Author
|
R. Grimes |
|
Editor
|
T. Davis |
| Structural Rank |
23,052 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
1 |
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
12,128 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
yes |
|
Positive Definite
|
yes |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
7.101577e+08 |
| Minimum Singular Value |
9.553745e-04 |
| Condition Number |
7.433291e+11
|
| Rank |
23,020 |
| sprank(A)-rank(A) |
32 |
| Null Space Dimension |
32 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
