HB/orsreg_1
U OIL RESERVOIR SIMULATION MATRIX FOR 21X21X 5 FULL GRID
| Name | orsreg_1 | 
| Group | HB | 
| Matrix ID | 227 | 
| Num Rows | 2,205 | 
| Num Cols | 2,205 | 
| Nonzeros | 14,133 | 
| Pattern Entries | 14,133 | 
| Kind | Computational Fluid Dynamics Problem | 
| Symmetric | No | 
| Date | 1984 | 
| Author | R. Grimes | 
| Editor | I. Duff, R. Grimes, J. Lewis | 
 
 
| Structural Rank | 2,205 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 41.2% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 2.927246e+04 | 
| Minimum Singular Value | 4.339703e+00 | 
| Condition Number | 6.745269e+03 | 
| Rank | 2,205 | 
| sprank(A)-rank(A) | 0 | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |