Matrix properties
number of rows	2,904
number of columns	2,904
nonzeros	58,142
structural full rank?	yes
structural rank	2,904
# of blocks from dmperm	929
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	0%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	F. Grund
editor	F. Grund
date	1997
kind	circuit simulation problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	772,337
Cholesky flop count	5.3e+08
nnz(L+U), no partial pivoting, with AMD	1,541,770
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	316,574
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	608,842

SVD-based statistics:
norm(A)	2.09952e+06
min(svd(A))	1.51857e-06
cond(A)	1.38256e+12
rank(A)	2,904
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.