Matrix properties
number of rows	313
number of columns	176
nonzeros	1,557
structural full rank?	yes
structural rank	176
# of blocks from dmperm	1
# strongly connected comp.	2
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	binary
structure	rectangular
Cholesky candidate?	no
positive definite?	no

author	M. Abbas
editor	A. Curtis, I. Duff, J. Reid
date	1974
kind	least squares problem
2D/3D problem?	no

Ordering statistics:	AMD	METIS
nnz(V) for QR, upper bound nnz(L) for LU	11,528	5,643
nnz(R) for QR, upper bound nnz(U) for LU	1,597	2,087

Maintained by Tim Davis, last updated 05-Mar-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.