Matrix properties
number of rows	5,850
number of columns	5,850
nonzeros	42,568
structural full rank?	yes
structural rank	5,850
# of blocks from dmperm	317
# strongly connected comp.	177
entries not in dmperm blocks	1,195
explicit zero entries	2,897
nonzero pattern symmetry	6%
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

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	494,583	509,268	468,376
Cholesky flop count	1.6e+08	1.5e+08	1.3e+08
nnz(L+U), no partial pivoting	983,316	1,012,686	932,097
nnz(V) for QR, upper bound nnz(L) for LU	505,338	377,528	420,195
nnz(R) for QR, upper bound nnz(U) for LU	966,471	819,182	811,081

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 2897 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.