GHS_indef/bratu3d
Gould, Hu, & Scott: 3D Bratu problem (CUTEr)
| Name |
bratu3d |
| Group |
GHS_indef |
| Matrix ID |
1299 |
|
Num Rows
|
27,792 |
|
Num Cols
|
27,792 |
|
Nonzeros
|
173,796 |
|
Pattern Entries
|
173,796 |
|
Kind
|
2D/3D Problem |
|
Symmetric
|
Yes |
|
Date
|
1989 |
|
Author
|
J. More' |
|
Editor
|
P. Toint |
| Structural Rank |
27,792 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
3,460 |
|
Strongly Connect Components
|
285 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
1.193723e+01 |
| Minimum Singular Value |
2.017826e-02 |
| Condition Number |
5.915886e+02
|
| Rank |
27,792 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
