HB/lund_a
SYMMETRIC MATRIX A OF LUND EIGENVALUE PROBLEM, MAY 1974
| Name |
lund_a |
| Group |
HB |
| Matrix ID |
206 |
|
Num Rows
|
147 |
|
Num Cols
|
147 |
|
Nonzeros
|
2,449 |
|
Pattern Entries
|
2,449 |
|
Kind
|
Structural Problem |
|
Symmetric
|
Yes |
|
Date
|
1974 |
|
Author
|
T. Johansson |
|
Editor
|
A. Curtis, I. Duff, J. Reid |
| Structural Rank |
147 |
| 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 |
2.238541e+08 |
| Minimum Singular Value |
8.003511e+01 |
| Condition Number |
2.796948e+06
|
| Rank |
147 |
| sprank(A)-rank(A) |
0 |
| Null Space Dimension |
0 |
| Full Numerical Rank? |
yes |
| Download Singular Values |
MATLAB
|
