Matrix properties
number of rows	21,255
number of columns	10,152
nonzeros	537,694
structural full rank?	no
structural rank	10,052
# of blocks from dmperm	89
# strongly connected comp.	13
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	rectangular
Cholesky candidate?	no
positive definite?	no

author	D. Maragal
editor	T. Davis
date	2008
kind	least squares problem
2D/3D problem?	no

Additional fields	size and type
b	full 21255-by-1

Notes:

rank deficient (rank(A) < sprank(A) < size(A,2))
sprank: 10052 columns: 10152                    

Ordering statistics:	AMD	METIS
nnz(V) for QR, upper bound nnz(L) for LU	99,209,452	120,581,248
nnz(R) for QR, upper bound nnz(U) for LU	47,737,988	51,455,267

Maintained by Tim Davis, last updated 05-Nov-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.