HB/lock3491
FINITE ELEMENT PROBLEM. LOCKHEED CROSS-CONE PROBLEM
Name |
lock3491 |
Group |
HB |
Matrix ID |
1180 |
Num Rows
|
3,491 |
Num Cols
|
3,491 |
Nonzeros
|
160,444 |
Pattern Entries
|
160,444 |
Kind
|
Structural Problem |
Symmetric
|
Yes |
Date
|
1980 |
Author
|
W. Loden |
Editor
|
I. Duff, R. Grimes, J. Lewis |
Structural Rank |
3,416 |
Structural Rank Full |
false |
Num Dmperm Blocks
|
3 |
Strongly Connect Components
|
76 |
Num Explicit Zeros
|
0 |
Pattern Symmetry
|
100% |
Numeric Symmetry
|
100% |
Cholesky Candidate
|
no |
Positive Definite
|
no |
Type
|
binary |
SVD Statistics |
Matrix Norm |
5.397936e+01 |
Minimum Singular Value |
8.721631e-128 |
Condition Number |
6.189136e+128
|
Rank |
603 |
sprank(A)-rank(A) |
2,813 |
Null Space Dimension |
2,888 |
Full Numerical Rank? |
no |
Download Singular Values |
MATLAB
|