Matrix properties
number of rows	37,261
number of columns	37,261
nonzeros	443,573
structural full rank?	yes
structural rank	37,261
# of blocks from dmperm	19
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	94%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	Rajat
editor	T. Davis
date	2006
kind	circuit simulation problem
2D/3D problem?	no

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	809,507
Cholesky flop count	6.6e+07
nnz(L+U), no partial pivoting, with AMD	1,581,753
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	52,562,877
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	85,820,610

SVD-based statistics:
norm(A)	326847
min(svd(A))	0.000710359
cond(A)	4.60115e+08
rank(A)	37,261
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.