HB/lns_3937

UNSYMMETRIC MATRIX FROM I.P.J. DEC 1982. LINEARIZED N-S. COMPRESSIBLE
Name lns_3937
Group HB
Matrix ID 189
Num Rows 3,937
Num Cols 3,937
Nonzeros 25,407
Pattern Entries 25,407
Kind Computational Fluid Dynamics Problem
Symmetric No
Date 1982
Author I. Jones
Editor I. Duff, R. Grimes, J. Lewis
Structural Rank 3,937
Structural Rank Full true
Num Dmperm Blocks 351
Strongly Connect Components 290
Num Explicit Zeros 0
Pattern Symmetry 85%
Numeric Symmetry 0.1%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 3.266182e+11
Minimum Singular Value 1.634126e-05
Condition Number 1.998733e+16
Rank 2,895
sprank(A)-rank(A) 1,042
Null Space Dimension 1,042
Full Numerical Rank? no
Download Singular Values MATLAB