FEMLAB/problem1
Comsol, Inc.  www.femlab.com : small test problem
| Name | problem1 | 
| Group | FEMLAB | 
| Matrix ID | 929 | 
| Num Rows | 415 | 
| Num Cols | 415 | 
| Nonzeros | 2,779 | 
| Pattern Entries | 2,779 | 
| Kind | 2D/3D Problem | 
| Symmetric | No | 
| Date | 2003 | 
| Author | COMSOL | 
| Editor | T. Davis | 
 
 
| Structural Rank | 415 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 65.5% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
| SVD Statistics | 
| Matrix Norm | 6.471857e+00 | 
| Minimum Singular Value | 2.205590e-17 | 
| Condition Number | 2.934298e+17 | 
| Rank | 414 | 
| sprank(A)-rank(A) | 1 | 
| Null Space Dimension | 1 | 
| Full Numerical Rank? | no | 
| Download Singular Values | MATLAB |