PWT: Nasa matrix, but with a diagonal added to the original matrix
Name pwt
Group GHS_psdef
Matrix ID 1273
Num Rows 36,519
Num Cols 36,519
Nonzeros 326,107
Pattern Entries 326,107
Kind Duplicate Structural Problem
Symmetric Yes
Date 1995
Author NASA
Editor G. Kumfert, A. Pothen
Structural Rank 36,519
Structural Rank Full true
Num Dmperm Blocks 57
Strongly Connect Components 57
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate yes
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 9.905274e+00
Minimum Singular Value 8.724673e-19
Condition Number 1.135318e+19
Rank 35,475
sprank(A)-rank(A) 1,044
Null Space Dimension 1,044
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Nasa/pwt, GHS_psdef/pwt and Pothen/pwt are identical; Pothen/ has xyz coord.