Gset/G13
2D torus, 32-by-25, uniformly random +1/-1 entries
| Name | G13 | 
| Group | Gset | 
| Matrix ID | 473 | 
| Num Rows | 800 | 
| Num Cols | 800 | 
| Nonzeros | 3,200 | 
| Pattern Entries | 3,200 | 
| Kind | Undirected Weighted Random Graph | 
| Symmetric | Yes | 
| Date | 1996 | 
| Author | C. Helmberg | 
| Editor | Y. Ye | 
 
 
| Structural Rank |  | 
| Structural Rank Full |  | 
| Num Dmperm Blocks |  | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 100% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | integer | 
 
| SVD Statistics | 
| Matrix Norm | 3.555232e+00 | 
| Minimum Singular Value | 5.107353e-04 | 
| Condition Number | 6.961008e+03 | 
| Rank | 800 | 
| sprank(A)-rank(A) |  | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |