%% Four Linked Tori
% Revolve four off-center circles to generate four linked unknotted tori.
% 
% Thanks to C. Henry Edwards, Dept. of Mathematics, Univerity of 
% Georgia.

% Copyright 1984-2004 The MathWorks, Inc.
% $Revision: 5.9.4.1 $  $Date: 2004/03/02 21:47:06 $

ab = [0 2*pi];
rtr = [6 1 1];
pq = [10 50];
box = [-6.6 6.6 -6.6 6.6 -3 3];
vue = [200 70];

tube('xylink1a',ab,rtr,pq,box,vue)
colormap(jet);
hold on

tube('xylink1b',ab,rtr,pq,box,vue)
tube('xylink1c',ab,rtr,pq,box,vue)
tube('xylink1d',ab,rtr,pq,box,vue)
hold off;