Matrix properties
number of rows	118
number of columns	118
nonzeros	476
structural full rank?	yes
structural rank	118
# 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	binary
structure	symmetric
Cholesky candidate?	yes
positive definite?	no

author	B. Dembart, J. Lewis
editor	I. Duff, R. Grimes, J. Lewis
date	1981
kind	power network problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	383	416
Cholesky flop count	1.3e+03	1.6e+03
nnz(L+U), no partial pivoting	648	714
nnz(V) for QR, upper bound nnz(L) for LU	481	642
nnz(R) for QR, upper bound nnz(U) for LU	927	1,139

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.