Matrix properties
number of rows	100
number of columns	100
nonzeros	396
structural full rank?	yes
structural rank	100
# of blocks from dmperm	1
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	symmetric
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	K. Meerbergen, D. Roose
editor	Z. Bai, D. Day, J. Demmel, J. Dongarra
date	1994
kind	computational fluid dynamics problem
2D/3D problem?	yes

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	297
Cholesky flop count	8.9e+02
nnz(L+U), no partial pivoting, with AMD	494
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	297
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	490

SVD-based statistics:
norm(A)	1965.2
min(svd(A))	0.147282
cond(A)	13343.1
rank(A)	100
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.