MathWorks/tomography
The MathWorks, Inc: Earth science matrix, from David Yang
| Name | tomography | 
| Group | MathWorks | 
| Matrix ID | 1328 | 
| Num Rows | 500 | 
| Num Cols | 500 | 
| Nonzeros | 28,726 | 
| Pattern Entries | 28,726 | 
| Kind | Computer Graphics/Vision Problem | 
| Symmetric | No | 
| Date | 2003 | 
| Author | D.Yang | 
| Editor | T. Davis | 
 
 
| Structural Rank | 500 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 37 | 
| Strongly Connect Components | 37 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 93.3% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 1.794368e+07 | 
| Minimum Singular Value | 3.811163e-01 | 
| Condition Number | 4.708190e+07 | 
| Rank | 500 | 
| sprank(A)-rank(A) | 0 | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |