Meszaros/aa4
linear programming problem, C. Meszaros test set
| Name | aa4 | 
| Group | Meszaros | 
| Matrix ID | 1682 | 
| Num Rows | 426 | 
| Num Cols | 7,195 | 
| Nonzeros | 52,121 | 
| Pattern Entries | 52,121 | 
| Kind | Linear Programming Problem | 
| Symmetric | No | 
| Date | 2004 | 
| Author |  | 
| Editor | C. Meszaros | 
 
 
| Structural Rank | 426 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 0% | 
| Numeric Symmetry | 0% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | binary | 
 
| SVD Statistics | 
| Matrix Norm | 4.154547e+01 | 
| Minimum Singular Value | 4.477660e-16 | 
| Condition Number | 9.278387e+16 | 
| Rank | 367 | 
| sprank(A)-rank(A) | 59 | 
| Null Space Dimension | 59 | 
| Full Numerical Rank? | no | 
| Download Singular Values | MATLAB | 
 
 
| Download | MATLAB
Rutherford Boeing
Matrix Market | 
| Notes | 
http://www.sztaki.hu/~meszaros/public_ftp/lptestset      
Converted to standard form via Resende and Veiga's mpsrd:
minimize c'*x, subject to A*x=b and lo <= x <= hi |