Matrix properties
number of rows	1,821
number of columns	1,821
nonzeros	52,685
structural full rank?	yes
structural rank	1,821
# 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	symmetric
type	real
structure	symmetric
Cholesky candidate?	yes
positive definite?	yes

author	A. Baggag, Y. Saad
editor	A. Baggag, Y. Saad
date	1994
kind	computational fluid dynamics problem
2D/3D problem?	yes

Ordering statistics:	AMD	METIS
nnz(chol(P*(A+A'+s*I)*P'))	58,346	66,026
Cholesky flop count	2.4e+06	3.2e+06
nnz(L+U), no partial pivoting	114,871	130,231
nnz(V) for QR, upper bound nnz(L) for LU	91,016	108,964
nnz(R) for QR, upper bound nnz(U) for LU	257,258	276,476

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.