GHS_psdef/wathen100

Gould,Higham,Scott: matrix from Andy Wathen, Oxford Univ.
Name wathen100
Group GHS_psdef
Matrix ID 1288
Num Rows 30,401
Num Cols 30,401
Nonzeros 471,601
Pattern Entries 471,601
Kind Random 2D/3D Problem
Symmetric Yes
Date 2004
Author A. Wathen
Editor N. Gould, Y. Hu, J. Scott
Structural Rank 30,401
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 yes
Type real
SVD Statistics
Matrix Norm 3.696741e+02
Minimum Singular Value 6.356142e-02
Condition Number 5.816014e+03
Rank 30,401
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
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Notes
rand('state',0); A = gallery('wathen',100,100) ; % (in MATLAB)