Matrix properties
number of rows	102
number of columns	102
nonzeros	306
structural full rank?	yes
structural rank	102
# of blocks from dmperm	1
# strongly connected comp.	1
explicit zero entries	0
nonzero pattern symmetry	99%
numeric value symmetry	0%
type	real
structure	unsymmetric
Cholesky candidate?	no
positive definite?	no

author	B. Cheng
editor	T. Davis
date	2002
kind	statistical/mathematical problem
2D/3D problem?	no

Additional fields	size and type
b	full 102-by-3

Ordering statistics:	result
nnz(chol(P*(A+A'+s*I)*P')) with AMD	303
Cholesky flop count	9.0e+02
nnz(L+U), no partial pivoting, with AMD	504
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD	304
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD	500

SVD-based statistics:
norm(A)	1.41607
min(svd(A))	0.0129195
cond(A)	109.607
rank(A)	102
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.