Matrix properties
number of rows	33,833
number of columns	33,833
nonzeros	73,249
structural full rank?	yes
structural rank	33,833
# of blocks from dmperm	33,628
# strongly connected comp.	33,628
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	F. Grund
editor	T. Davis
date	2010
kind	economic problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	117,954
Cholesky flop count	6.3e+06
nnz(L+U), no partial pivoting, with AMD	202,075
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	231,909
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	1,666,564

SVD-based statistics:
norm(A)	15.6251
min(svd(A))	0.0208286
cond(A)	750.176
rank(A)	33,833
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.