Matrix properties
number of rows	21,036
number of columns	21,036
nonzeros	303,468
structural full rank?	yes
structural rank	21,036
# of blocks from dmperm	1
# strongly connected comp.	1
entries not in dmperm blocks	0
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	0%
type	complex
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	COMSOL
editor	T. Davis
date	2003
kind	electromagnetics problem
2D/3D problem?	yes

Additional fields	size and type
b	full 21036-by-1

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	2,299,528	2,120,774
Cholesky flop count	5.6e+08	4.5e+08
nnz(L+U), no partial pivoting	4,578,020	4,220,512
nnz(V) for QR, upper bound nnz(L) for LU	4,619,201	4,407,034
nnz(R) for QR, upper bound nnz(U) for LU	9,113,391	9,183,821

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.