GHS_indef/aug2dc
Gould, Hu, Scott: expanded system-2D PDE (CUTEr)
| Name |
aug2dc |
| Group |
GHS_indef |
| Matrix ID |
1216 |
|
Num Rows
|
30,200 |
|
Num Cols
|
30,200 |
|
Nonzeros
|
80,000 |
|
Pattern Entries
|
80,000 |
|
Kind
|
2D/3D Problem |
|
Symmetric
|
Yes |
|
Date
|
1994 |
|
Author
|
N. Gould |
|
Editor
|
N. Gould |
| Structural Rank |
20,000 |
| Structural Rank Full |
false |
|
Num Dmperm Blocks
|
2 |
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
integer |
| SVD Statistics |
| Matrix Norm |
2.828085e+00 |
| Minimum Singular Value |
1.157218e-41 |
| Condition Number |
2.443865e+41
|
| Rank |
20,000 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
10,200 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
