Matrix properties
number of rows	5,860
number of columns	5,860
nonzeros	25,258
structural full rank?	yes
structural rank	5,860
# of blocks from dmperm	1,412
# strongly connected comp.	1,318
entries not in dmperm blocks	3,334
explicit zero entries	21,584
nonzero pattern symmetry	symmetric
numeric value symmetry	symmetric
type	real
structure	symmetric
Cholesky candidate?	yes
positive definite?	no

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

Ordering statistics:	AMD	METIS	DMPERM+
nnz(chol(P*(A+A'+s*I)*P'))	21,670	22,151	19,412
Cholesky flop count	1.2e+05	1.2e+05	9.4e+04
nnz(L+U), no partial pivoting	37,480	38,442	36,298
nnz(V) for QR, upper bound nnz(L) for LU	885,129	445,112	194,276
nnz(R) for QR, upper bound nnz(U) for LU	1,500,034	1,180,621	311,698

Note that all matrix statistics (except nonzero pattern symmetry) exclude the 21584 explicit zero entries.

Maintained by Tim Davis, last updated 04-May-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.