Matrix properties
number of rows	104
number of columns	104
nonzeros	992
structural full rank?	yes
structural rank	104
# of blocks from dmperm	2
# strongly connected comp.	2
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	J. Cullum
editor	Z. Bai, D. Day, J. Demmel, J. Dongarra
date	1986
kind	2D/3D problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	548	668	548
Cholesky flop count	3.0e+03	4.7e+03	3.0e+03
nnz(L+U), no partial pivoting	992	1,232	992
nnz(V) for QR, upper bound nnz(L) for LU	572	556	572
nnz(R) for QR, upper bound nnz(U) for LU	912	908	908

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.