Matrix properties
number of rows	1,033
number of columns	320
nonzeros	4,719
structural full rank?	yes
structural rank	320
# of blocks from dmperm	15
# strongly connected comp.	1
explicit zero entries	13
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	30,791
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	2,988

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 13 explicit zero entries.

SVD-based statistics:
norm(A)	2.14435
min(svd(A))	0.000113529
cond(A)	18888.1
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.