Matrix properties
number of rows	100
number of columns	100
nonzeros	708
structural full rank?	yes
structural rank	100
# of blocks from dmperm	48
# strongly connected comp.	1
entries not in dmperm blocks	408
explicit zero entries	0
nonzero pattern symmetry	51%
numeric value symmetry	7%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	M. Morandini
editor	T. Davis
date	2006
kind	structural problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	762	764	294
Cholesky flop count	6.7e+03	6.7e+03	1.3e+03
nnz(L+U), no partial pivoting	1,424	1,428	896
nnz(V) for QR, upper bound nnz(L) for LU	1,352	824	334
nnz(R) for QR, upper bound nnz(U) for LU	2,049	2,112	810

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.