HB/lns_131
UNSYMMETRIC MATRIX FROM I.P.J. DEC 1982. LINEARIZED N-S. COMPRESSIBLE
| Name | lns_131 | 
| Group | HB | 
| Matrix ID | 188 | 
| Num Rows | 131 | 
| Num Cols | 131 | 
| Nonzeros | 536 | 
| Pattern Entries | 536 | 
| Kind | Computational Fluid Dynamics Problem | 
| Symmetric | No | 
| Date | 1982 | 
| Author | I. Jones | 
| Editor | I. Duff, R. Grimes, J. Lewis | 
 
 
| Structural Rank | 131 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 65 | 
| Strongly Connect Components | 48 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 70.3% | 
| Numeric Symmetry | 1.9% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 9.772096e+09 | 
| Minimum Singular Value | 7.642182e-06 | 
| Condition Number | 1.278705e+15 | 
| Rank | 125 | 
| sprank(A)-rank(A) | 6 | 
| Null Space Dimension | 6 | 
| Full Numerical Rank? | no | 
| Download Singular Values | MATLAB |