Matrix properties
number of rows	85
number of columns	85
nonzeros	523
structural full rank?	yes
structural rank	85
# 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	V. Askenazi
editor	A. Curtis, I. Duff, J. Reid
date	1974
kind	least squares problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	505	560
Cholesky flop count	3.3e+03	4.2e+03
nnz(L+U), no partial pivoting	925	1,035
nnz(V) for QR, upper bound nnz(L) for LU	598	725
nnz(R) for QR, upper bound nnz(U) for LU	1,096	1,269

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.