Matrix properties
number of rows	2,395
number of columns	2,395
nonzeros	13,151
structural full rank?	yes
structural rank	2,395
# of blocks from dmperm	1
# strongly connected comp.	1
entries not in dmperm blocks	0
explicit zero entries	4,168
nonzero pattern symmetry	symmetric
numeric value symmetry	53%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	S. Hamm
editor	T. Davis
date	1991
kind	circuit simulation problem
2D/3D problem?	no

Additional fields	size and type
b	full 2395-by-1

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	9,777	10,593
Cholesky flop count	7.4e+04	9.1e+04
nnz(L+U), no partial pivoting	17,159	18,791
nnz(V) for QR, upper bound nnz(L) for LU	43,284	43,450
nnz(R) for QR, upper bound nnz(U) for LU	101,299	118,900

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 4168 explicit zero entries.

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.