Simon/olafu
STRUCTURE FROM NASA LANGLEY, ACCURACY PROBLEM ON Y-MP
| Name |
olafu |
| Group |
Simon |
| Matrix ID |
813 |
|
Num Rows
|
16,146 |
|
Num Cols
|
16,146 |
|
Nonzeros
|
1,015,156 |
|
Pattern Entries
|
1,015,156 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1993 |
|
Author
|
H. Simon |
|
Editor
|
H. Simon |
| Structural Rank |
16,146 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
1 |
|
Strongly Connect Components
|
1 |
|
Num Explicit Zeros
|
0 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
yes |
|
Positive Definite
|
yes |
|
Type
|
real |
| SVD Statistics |
| Matrix Norm |
9.478703e+11 |
| Minimum Singular Value |
1.245420e+00 |
| Condition Number |
7.610850e+11
|
| Rank |
16,145 |
| sprank(A)-rank(A) |
1 |
| Null Space Dimension |
1 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
