Matrix properties
number of rows	49,702
number of columns	49,702
nonzeros	333,029
structural full rank?	yes
structural rank	49,702
# of blocks from dmperm	172
# strongly connected comp.	172
entries not in dmperm blocks	4,430
explicit zero entries	0
nonzero pattern symmetry	98%
numeric value symmetry	74%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	T. Lehner
editor	T. Davis
date	2006
kind	circuit simulation problem
2D/3D problem?	no

Additional fields	size and type
b	full 49702-by-1

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	565,749	639,417	612,616
Cholesky flop count	1.9e+07	2.4e+07	2.2e+07
nnz(L+U), no partial pivoting	1,081,796	1,229,132	1,179,960
nnz(V) for QR, upper bound nnz(L) for LU	11,284,756	8,483,429	8,323,433
nnz(R) for QR, upper bound nnz(U) for LU	20,839,129	19,609,322	18,462,755

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.