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
|