HB/bcsstk23
SYMMETRIC STIFFNESS MATRIX - PORTION OF A 3D GLOBALLY TRIANGLULAR BLDG
Name |
bcsstk23 |
Group |
HB |
Matrix ID |
45 |
Num Rows
|
3,134 |
Num Cols
|
3,134 |
Nonzeros
|
45,178 |
Pattern Entries
|
45,178 |
Kind
|
Structural Problem |
Symmetric
|
Yes |
Date
|
1984 |
Author
|
J. Lewis |
Editor
|
I. Duff, R. Grimes, J. Lewis |
Structural Rank |
3,134 |
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 |
22,580,407,237,629,408 |
Minimum Singular Value |
8.535284e+03 |
Condition Number |
2.645537e+12
|
Rank |
3,133 |
sprank(A)-rank(A) |
1 |
Null Space Dimension |
1 |
Full Numerical Rank? |
no |
Download Singular Values |
MATLAB
|