JGD_BIBD/bibd_12_5

Balanced Incomplete Block Design from Mark Giesbrecht, Univ. of Waterloo
Name bibd_12_5
Group JGD_BIBD
Matrix ID 1924
Num Rows 66
Num Cols 792
Nonzeros 7,920
Pattern Entries 7,920
Kind Combinatorial Problem
Symmetric No
Date 2008
Author M. Giesbrecht
Editor J.-G. Dumas
Structural Rank 66
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type binary
SVD Statistics
Matrix Norm 3.464102e+01
Minimum Singular Value 7.483315e+00
Condition Number 4.629100e+00
Rank 66
sprank(A)-rank(A) 0
Null Space Dimension 0
Full Numerical Rank? yes
Download Singular Values MATLAB
Download MATLAB Rutherford Boeing Matrix Market
Notes 
Balanced Incomplete Block Design from Mark Giesbrecht, Univ. of Waterloo
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,            
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html               
                                                                        
Filename in JGD collection: BIBD/bibd_12_5_66x792