Matrix properties
number of rows	1,033
number of columns	320
nonzeros	4,732
structural full rank?	yes
structural rank	320
# of blocks from dmperm	15
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	rectangular
Cholesky candidate?	no
positive definite?	no

author	M. Saunders
editor	I. Duff, R. Grimes, J. Lewis
date	1979
kind	least squares problem
2D/3D problem?	no

Additional fields	size and type
b	full 1033-by-1

Ordering statistics:	result
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	30,793
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	2,988

SVD-based statistics:
norm(A)	1.80651
min(svd(A))	0.0108739
cond(A)	166.133
rank(A)	320
sprank(A)-rank(A)	0
null space dimension	0
full numerical rank?	yes

singular values (MAT file):	click here
SVD method used:	s = svd (full (A)) ;
status:	ok

For a description of the statistics displayed above, click here.

Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.