GHS_psdef/copter1
Gould, Hu, & Scott: Helicoptor rotor blade, from Pothen & Kumfert
| Name | copter1 | 
| Group | GHS_psdef | 
| Matrix ID | 1255 | 
| Num Rows | 17,222 | 
| Num Cols | 17,222 | 
| Nonzeros | 211,064 | 
| Pattern Entries | 211,064 | 
| Kind | Computational Fluid Dynamics Problem | 
| Symmetric | Yes | 
| Date | 2004 | 
| Author | G. Kumfert, A. Pothen | 
| Editor | N. Gould, Y. Hu, J. Scott | 
 
 
| Structural Rank | 17,222 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 100% | 
| Numeric Symmetry | 100% | 
| Cholesky Candidate | yes | 
| Positive Definite | no | 
| Type | binary | 
 
| SVD Statistics | 
| Matrix Norm | 1.525993e+01 | 
| Minimum Singular Value | 1.583946e-03 | 
| Condition Number | 9.634119e+03 | 
| Rank | 17,222 | 
| sprank(A)-rank(A) | 0 | 
| Null Space Dimension | 0 | 
| Full Numerical Rank? | yes | 
| Download Singular Values | MATLAB |