GHS_indef/exdata_1
MATRIX EXDATA FROM STEVE WRIGHT . MA57 SLOWER THAN MA27
| Name |
exdata_1 |
| Group |
GHS_indef |
| Matrix ID |
1235 |
|
Num Rows
|
6,001 |
|
Num Cols
|
6,001 |
|
Nonzeros
|
2,269,500 |
|
Pattern Entries
|
2,269,501 |
|
Kind
|
Optimization Problem |
|
Symmetric
|
Yes |
|
Date
|
2004 |
|
Author
|
S. Wright |
|
Editor
|
N. Gould, Y. Hu, J. Scott |
| Structural Rank |
6,001 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
1 |
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
1 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
3.695657e+08 |
| Minimum Singular Value |
3.486051e-04 |
| Condition Number |
1.060127e+12
|
| Rank |
6,000 |
| sprank(A)-rank(A) |
1 |
| Null Space Dimension |
1 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
