Matrix properties
number of rows	10,672
number of columns	10,672
nonzeros	232,633
structural full rank?	yes
structural rank	10,672
# of blocks from dmperm	908
# strongly connected comp.	31
explicit zero entries	0
nonzero pattern symmetry	1%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	J. Mallya
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	11,914,369
Cholesky flop count	3.5e+10
nnz(L+U), no partial pivoting, with AMD	23,818,066
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	370,538
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	847,036

SVD-based statistics:
norm(A)	18.9066
min(svd(A))	2.55817e-13
cond(A)	7.39067e+13
rank(A)	10,670
sprank(A)-rank(A)	2
null space dimension	2
full numerical rank?	no
singular value gap	55.0044

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.