GHS_indef/tuma1
Gould, Hu, & Scott: mine model from Miroslav Tuma
Name |
tuma1 |
Group |
GHS_indef |
Matrix ID |
1249 |
Num Rows
|
22,967 |
Num Cols
|
22,967 |
Nonzeros
|
87,760 |
Pattern Entries
|
87,760 |
Kind
|
2D/3D Problem |
Symmetric
|
Yes |
Date
|
2004 |
Author
|
M. Tuma |
Editor
|
N. Gould, Y. Hu, J. Scott |
Structural Rank |
22,967 |
Structural Rank Full |
true |
Num Dmperm Blocks
|
1,437 |
Strongly Connect Components
|
1 |
Num Explicit Zeros
|
0 |
Pattern Symmetry
|
100% |
Numeric Symmetry
|
100% |
Cholesky Candidate
|
no |
Positive Definite
|
no |
Type
|
real |
SVD Statistics |
Matrix Norm |
4.891341e+00 |
Minimum Singular Value |
1.595498e-03 |
Condition Number |
3.065714e+03
|
Rank |
22,967 |
sprank(A)-rank(A) |
0 |
Null Space Dimension |
0 |
Full Numerical Rank? |
yes |
Download Singular Values |
MATLAB
|