Matrix properties
number of rows	49,702
number of columns	49,702
nonzeros	332,807
structural full rank?	yes
structural rank	49,702
# of blocks from dmperm	199
# strongly connected comp.	199
entries not in dmperm blocks	4,487
explicit zero entries	222
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'))	555,754	626,673	573,106
Cholesky flop count	1.8e+07	2.2e+07	1.9e+07
nnz(L+U), no partial pivoting	1,061,806	1,203,644	1,100,997
nnz(V) for QR, upper bound nnz(L) for LU	11,239,524	8,164,759	7,221,953
nnz(R) for QR, upper bound nnz(U) for LU	20,737,427	19,155,909	16,569,118

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 222 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.