TKK/tube1

Tube problem from R. Kouhia
Name tube1
Group TKK
Matrix ID 1914
Num Rows 21,498
Num Cols 21,498
Nonzeros 897,056
Pattern Entries 897,056
Kind Structural Problem
Symmetric Yes
Date 2008
Author R. Kouhia
Editor T. Davis
Structural Rank 21,498
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 4.325723e+01
Minimum Singular Value 3.189500e-204
Condition Number 1.356239e+205
Rank 3,583
sprank(A)-rank(A) 17,915
Null Space Dimension 17,915
Full Numerical Rank? no
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes
Matrix problems from Reijo Kouhia, Structural Mechanics, Helsinki  
University of Technology.   http://users.tkk.fi/~kouhia/sparse.html