HB/jpwh_991

UNSYMMETRIC MATRIX FROM PHILIPS LTD, J.P.WHELAN,1978.
Name jpwh_991
Group HB
Matrix ID 187
Num Rows 991
Num Cols 991
Nonzeros 6,027
Pattern Entries 6,027
Kind Semiconductor Device Problem
Symmetric No
Date 1978
Author J. Whelan
Editor I. Duff, R. Grimes, J. Lewis
Structural Rank 991
Structural Rank Full true
Num Dmperm Blocks 146
Strongly Connect Components 146
Num Explicit Zeros 0
Pattern Symmetry 93.6%
Numeric Symmetry 93.6%
Cholesky Candidate no
Positive Definite no
Type integer
SVD Statistics
Matrix Norm 1.629198e+01
Minimum Singular Value 1.146959e-01
Condition Number 1.420450e+02
Rank 991
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB