Matrix properties
number of rows	15,575
number of columns	15,575
nonzeros	33,033
structural full rank?	yes
structural rank	15,575
# of blocks from dmperm	15,466
# strongly connected comp.	15,466
explicit zero entries	41
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	F. Grund
editor	F. Grund
date	1997
kind	economic problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	36,160
Cholesky flop count	1.6e+05
nnz(L+U), no partial pivoting, with AMD	56,745
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	59,302
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	717,364

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 41 explicit zero entries.

SVD-based statistics:
norm(A)	13.6318
min(svd(A))	0.456948
cond(A)	29.8323
rank(A)	15,575
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:	SVD did not converge.

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.