HB/lshp1009

SYMMETRIC MATRIX FROM ALAN GEORGE'S L-SHAPE PROBLEMS, 1978.
Name lshp1009
Group HB
Matrix ID 194
Num Rows 1,009
Num Cols 1,009
Nonzeros 6,865
Pattern Entries 6,865
Kind Duplicate Thermal Problem
Symmetric Yes
Date 1978
Author A. George
Editor I. Duff, R. Grimes, J. Lewis
Structural Rank 1,009
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 6.969544e+00
Minimum Singular Value 2.945094e-03
Condition Number 2.366493e+03
Rank 1,009
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB
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Notes
duplicate of HB/jagmesh2