Matrix properties
number of rows	331
number of columns	104
nonzeros	662
structural full rank?	yes
structural rank	104
# of blocks from dmperm	1
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	binary
structure	rectangular
Cholesky candidate?	no
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:	result
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	6,085
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	744

SVD-based statistics:
norm(A)	4.15069
min(svd(A))	1.34044
cond(A)	3.09651
rank(A)	104
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.