Matrix properties
number of rows	120
number of columns	120
nonzeros	870
structural full rank?	yes
structural rank	120
# of blocks from dmperm	19
# strongly connected comp.	1
entries not in dmperm blocks	112
explicit zero entries	0
nonzero pattern symmetry	22%
numeric value symmetry	5%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

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

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	1,066	1,218	1,040
Cholesky flop count	1.1e+04	1.6e+04	1.2e+04
nnz(L+U), no partial pivoting	2,012	2,316	2,072
nnz(V) for QR, upper bound nnz(L) for LU	913	794	988
nnz(R) for QR, upper bound nnz(U) for LU	2,172	2,356	2,003

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.