Matrix properties
number of rows	19,362
number of columns	19,362
nonzeros	83,443
structural full rank?	yes
structural rank	19,362
# of blocks from dmperm	163
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	binary
structure	symmetric
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	235,514
Cholesky flop count	1.2e+07
nnz(L+U), no partial pivoting, with AMD	451,666
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	503,600
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	925,184

SVD-based statistics:
norm(A)	10.1923
min(svd(A))	0.0106899
cond(A)	953.453
rank(A)	19,362
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 (R)) ; where [~,R,E] = spqr (A) with droptol of zero
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.