GHS_indef/aug3dcqp
Gould, Hu, & Scott: expanded system-3D PDE (CUTEr)
| Name |
aug3dcqp |
| Group |
GHS_indef |
| Matrix ID |
1218 |
|
Num Rows
|
35,543 |
|
Num Cols
|
35,543 |
|
Nonzeros
|
128,115 |
|
Pattern Entries
|
128,115 |
|
Kind
|
2D/3D Problem |
|
Symmetric
|
Yes |
|
Date
|
1994 |
|
Author
|
N. Gould |
|
Editor
|
N. Gould |
| Structural Rank |
35,543 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
2 |
|
Strongly Connect Components
|
2 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
2.505941e+08 |
| Minimum Singular Value |
1.335193e-07 |
| Condition Number |
1.876838e+15
|
| Rank |
28,387 |
| sprank(A)-rank(A) |
7,156 |
| Null Space Dimension |
7,156 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
