HB/lshp1882

SYMMETRIC MATRIX FROM ALAN GEORGE'S L-SHAPE PROBLEMS, 1978.
Name lshp1882
Group HB
Matrix ID 197
Num Rows 1,882
Num Cols 1,882
Nonzeros 12,904
Pattern Entries 12,904
Kind Thermal Problem
Symmetric Yes
Date 1978
Author A. George
Editor I. Duff, R. Grimes, J. Lewis
Structural Rank 1,882
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 6.983409e+00
Minimum Singular Value 2.381698e-03
Condition Number 2.932114e+03
Rank 1,882
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB