Matrix properties
number of rows	726
number of columns	726
nonzeros	34,518
structural full rank?	yes
structural rank	726
# 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?	yes
positive definite?	yes

author	R. Grimes
editor	T. Davis
date	1995
kind	structural problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	110,707	83,333
Cholesky flop count	2.3e+07	1.2e+07
nnz(L+U), no partial pivoting	220,688	165,940
nnz(V) for QR, upper bound nnz(L) for LU	101,362	117,683
nnz(R) for QR, upper bound nnz(U) for LU	184,917	188,203

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.