% 
% Written by:
% -- 
% John L. Weatherwax                2005-06-10
% 
% email: wax@alum.mit.edu
% 
% Please send comments and especially bug reports to the
% above email address.
% 
%-----

y1 = [ 1 1 1 1 ]; y2 = [ -3 -1 1 3 ];

pt1 = ( y1.' ) * y1

pt2 = ( y2.' ) * y2

pt1/4 + pt2/20