Matrix properties
number of rows	14,596
number of columns	209
nonzeros	51,307
structural full rank?	yes
structural rank	209
# of blocks from dmperm	1
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	integer
structure	rectangular
Cholesky candidate?	no
positive definite?	no

author	A. Jarrah
editor	J.-G. Dumas
date	2008
kind	combinatorial problem
2D/3D problem?	no

Notes:

Taha matrix set from Abdul Salam Jarrah, New Mexico State Univ.
From Jean-Guillaume Dumas' Sparse Integer Matrix Collection,   
http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html      
                                                               
http://www.math.nmsu.edu/~ajarrah                              
                                                               
Filename in JGD collection: Taha/mat_abtaha.sms                

Ordering statistics:	result
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	1,842,603
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	21,024

SVD-based statistics:
norm(A)	19.5192
min(svd(A))	1.59623
cond(A)	12.2283
rank(A)	209
sprank(A)-rank(A)	0
null space dimension	0
full numerical rank?	yes

singular values (MAT file):	click here
SVD method used:	s = svd (full (A)) ;
status:	ok

For a description of the statistics displayed above, click here.

Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.