Matrix properties
number of rows	13,694
number of columns	13,694
nonzeros	72,734
structural full rank?	yes
structural rank	13,694
# of blocks from dmperm	1,934
# strongly connected comp.	1,914
entries not in dmperm blocks	8,253
explicit zero entries	10,108
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	P. Hollinger
editor	T. Davis
date	2001
kind	economic problem
2D/3D problem?	no

Additional fields	size and type
b	full 13694-by-1
x	full 13694-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	574,758	616,804	599,451
Cholesky flop count	1.7e+08	1.7e+08	2.0e+08
nnz(L+U), no partial pivoting	1,135,822	1,219,914	1,193,461
nnz(V) for QR, upper bound nnz(L) for LU	681,089	460,723	455,339
nnz(R) for QR, upper bound nnz(U) for LU	1,712,691	1,343,966	1,252,665

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 10108 explicit zero entries.

Maintained by Tim Davis, last updated 04-May-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.