GHS_indef/aug2d
Gould, Hu, & Scott: expanded system-2D PDE (CUTEr)
Name |
aug2d |
Group |
GHS_indef |
Matrix ID |
1215 |
Num Rows
|
29,008 |
Num Cols
|
29,008 |
Nonzeros
|
76,832 |
Pattern Entries
|
76,832 |
Kind
|
2D/3D Problem |
Symmetric
|
Yes |
Date
|
1994 |
Author
|
N. Gould |
Editor
|
N. Gould |
Structural Rank |
19,208 |
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 |
2.828071e+00 |
Minimum Singular Value |
6.825798e-40 |
Condition Number |
4.143210e+39
|
Rank |
19,208 |
sprank(A)-rank(A) |
0 |
Null Space Dimension |
9,800 |
Full Numerical Rank? |
no |
Download Singular Values |
MATLAB
|