HB/gemat1
UNSUMMETRIC MATRIX FROM G.E. OPF PROGRAM. WESTERN UTILITY SYSTEM.
| Name | gemat1 | 
| Group | HB | 
| Matrix ID | 155 | 
| Num Rows | 4,929 | 
| Num Cols | 10,595 | 
| Nonzeros | 46,591 | 
| Pattern Entries | 47,369 | 
| Kind | Power Network Problem | 
| Symmetric | No | 
| Date | 1984 | 
| Author | R. Burchett | 
| Editor | I. Duff, R. Grimes, J. Lewis | 
 
 
| Structural Rank | 4,929 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 778 | 
| Pattern Symmetry | 0% | 
| Numeric Symmetry | 0% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 2.344606e+04 | 
| Minimum Singular Value | 1.994312e-04 | 
| Condition Number | 1.175647e+08 | 
| Rank | 4,929 | 
| sprank(A)-rank(A) | 0 | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |