HB/dwt_221
SYMMETRIC CONNECTION TABLE FROM DTNSRDC, WASHINGTON
| Name |
dwt_221 |
| Group |
HB |
| Matrix ID |
117 |
|
Num Rows
|
221 |
|
Num Cols
|
221 |
|
Nonzeros
|
1,629 |
|
Pattern Entries
|
1,629 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1980 |
|
Author
|
G. Everstine, D. Taylor |
|
Editor
|
I. Duff, R. Grimes, J. Lewis |
| Structural Rank |
221 |
| 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
|
no |
|
Type
|
binary |
| SVD Statistics |
| Matrix Norm |
8.222841e+00 |
| Minimum Singular Value |
3.973319e-16 |
| Condition Number |
2.069514e+16
|
| Rank |
220 |
| sprank(A)-rank(A) |
1 |
| Null Space Dimension |
1 |
| Full Numerical Rank? |
no |
| Download Singular Values |
MATLAB
|
