BARTH: Nasa matrix, but with a diagonal added to the original
Name barth
Group Nasa
Matrix ID 754
Num Rows 6,691
Num Cols 6,691
Nonzeros 26,439
Pattern Entries 26,439
Kind Duplicate Structural Problem
Symmetric No
Date 1995
Author NASA
Editor G. Kumfert, A. Pothen
Structural Rank 6,691
Structural Rank Full true
Num Dmperm Blocks 981
Strongly Connect Components 981
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 4.892839e+00
Minimum Singular Value 6.715379e-17
Condition Number 7.286021e+16
Rank 6,690
sprank(A)-rank(A) 1
Null Space Dimension 1
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Let A=Nasa/barth, then Pothen/barth = spones(A+A') with xyz coord.