Matrix properties
number of rows	200
number of columns	200
nonzeros	796
structural full rank?	yes
structural rank	200
# 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	66%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	Y. Saad
editor	Z. Bai, D. Day, J. Demmel, J. Dongarra
date	1992
kind	chemical process simulation problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	597	790
Cholesky flop count	1.8e+03	3.2e+03
nnz(L+U), no partial pivoting	994	1,380
nnz(V) for QR, upper bound nnz(L) for LU	597	796
nnz(R) for QR, upper bound nnz(U) for LU	990	1,376

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.