Matrix properties
number of rows	80,016
number of columns	80,016
nonzeros	347,222
structural full rank?	yes
structural rank	80,016
# of blocks from dmperm	1
# strongly connected comp.	1
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	real
structure	symmetric
Cholesky candidate?	no
positive definite?	no

author	M. Ferris
editor	N. Gould
date	2004
kind	optimization problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	397,067	327,892
Cholesky flop count	2.5e+06	1.6e+06
nnz(L+U), no partial pivoting	714,118	575,768
nnz(V) for QR, upper bound nnz(L) for LU	219,184,088	-
nnz(R) for QR, upper bound nnz(U) for LU	360,845,498	-

Maintained by Tim Davis, last updated 30-Sep-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.