HB/arc130

UNSYMMETRIC MATRIX FROM LASER PROBLEM. A.R.CURTIS, OCT 1974
Name arc130
Group HB
Matrix ID 6
Num Rows 130
Num Cols 130
Nonzeros 1,037
Kind Materials Problem
Symmetric No
Date 1974
Author A. Curtis
Editor A. Curtis, I. Duff, J. Reid
Structural Rank 130
Structural Rank Full true
Num Dmperm Blocks 55
Strongly Connect Components 55
Num Explicit Zeros 245
Pattern Symmetry 75.9%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type real
SVD Statistics
Matrix Norm 2.397348e+05
Minimum Singular Value 3.959802e-06
Condition Number 6.054212e+10
Rank 130
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB