HB/steam3
UNSYMMETRIC - 1D STEAM MODEL OF OIL RES. - 20 POINTS - 4 DOF  MAY 1983
| Name | steam3 | 
| Group | HB | 
| Matrix ID | 253 | 
| Num Rows | 80 | 
| Num Cols | 80 | 
| Nonzeros | 314 | 
| Pattern Entries | 928 | 
| Kind | Computational Fluid Dynamics Problem | 
| Symmetric | No | 
| Date | 1983 | 
| Author | R. Grimes | 
| Editor | I. Duff, R. Grimes, J. Lewis | 
 
 
| Structural Rank | 80 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 21 | 
| Strongly Connect Components | 21 | 
| Num Explicit Zeros | 614 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 32.5% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 1.738567e+10 | 
| Minimum Singular Value | 3.481531e-01 | 
| Condition Number | 4.993686e+10 | 
| Rank | 80 | 
| sprank(A)-rank(A) | 0 | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |