Matrix properties
number of rows	7,602
number of columns	7,602
nonzeros	32,653
structural full rank?	yes
structural rank	7,602
# of blocks from dmperm	103
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	40%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	Rajat
editor	T. Davis
date	2004
kind	circuit simulation problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	86,523
Cholesky flop count	3.4e+06
nnz(L+U), no partial pivoting, with AMD	165,444
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	161,624
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	298,080

SVD-based statistics:
norm(A)	510.206
min(svd(A))	4.03327e-05
cond(A)	1.26499e+07
rank(A)	7,602
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.