HB/jgl009

U JOHN G. LEWIS P4 COUNTEREXAMPLE WHICH REQUIRES FILL IN SPIKES
Name jgl009
Group HB
Matrix ID 185
Num Rows 9
Num Cols 9
Nonzeros 50
Pattern Entries 50
Kind Counter Example Problem
Symmetric No
Date 1983
Author J. Lewis
Editor I. Duff, R. Grimes, J. Lewis
Structural Rank 9
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 47.6%
Numeric Symmetry 47.6%
Cholesky Candidate no
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 6.101288e+00
Minimum Singular Value 4.861731e-63
Condition Number 1.254962e+63
Rank 5
sprank(A)-rank(A) 4
Null Space Dimension 4
Full Numerical Rank? no
Download Singular Values MATLAB