JGD_Forest/TF12

Forests and Trees from Nicolas Thiery
Name TF12
Group JGD_Forest
Matrix ID 1946
Num Rows 488
Num Cols 552
Nonzeros 4,231
Pattern Entries 4,231
Kind Combinatorial Problem
Symmetric No
Date 2008
Author N. Thiery
Editor J.-G. Dumas
Structural Rank 488
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 2
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type integer
SVD Statistics
Matrix Norm 1.258601e+01
Minimum Singular Value 2.824951e-03
Condition Number 4.455301e+03
Rank 488
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes 
Forests and Trees from Nicolas Thiery                       
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html   
                                                            
TF10 :  rank =    99 ,      0.0263529 s, Gauss: 0.00382595  
TF11 :  rank =   216 ,      0.136469  s, Gauss: 0.0256469   
TF12 :  rank =   488 ,      0.83511   s, Gauss: 0.295295    
TF13 :  rank =  1121 ,      6.06873   s, Gauss: 4.97585     
TF14 :  rank =  2644 ,     36.9781    s, Gauss: 81.5788     
TF15 :  rank =  6334 ,    229.029     s, Gauss: 1309.48     
TF16 :  rank = 15437 ,   1442.08      s, Gauss: 36000       
TF17 :  rank = 38132 ,   9706.03      s, Gauss:             
                                                            
http://www.lapcs.univ-lyon1.fr/~nthiery                     
                                                            
Filename in JGD collection: Forest/TF12.txt2