Matrix properties
number of rows	135
number of columns	135
nonzeros	665
structural full rank?	yes
structural rank	135
# of blocks from dmperm	7
# strongly connected comp.	1
explicit zero entries	147
nonzero pattern symmetry	89%
numeric value symmetry	63%
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	501
Cholesky flop count	1.9e+03
nnz(L+U), no partial pivoting, with AMD	867
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	702
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	1,588

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 147 explicit zero entries.

SVD-based statistics:
norm(A)	15.0005
min(svd(A))	1.62535e-05
cond(A)	922910
rank(A)	135
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.