Matrix properties
number of rows	1,048
number of columns	1,048
nonzeros	13,299
structural full rank?	yes
structural rank	1,048
# of blocks from dmperm	98
# strongly connected comp.	2
explicit zero entries	0
nonzero pattern symmetry	5%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	S. Zitney
editor	T. Davis
date	1997
kind	chemical process simulation problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	105,528
Cholesky flop count	1.8e+07
nnz(L+U), no partial pivoting, with AMD	210,008
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	17,131
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	31,856

SVD-based statistics:
norm(A)	582.772
min(svd(A))	9.8286e-09
cond(A)	5.92935e+10
rank(A)	1,048
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.