function  [xt,yt] = xycrull(t);
%XYCRULL Function that returns the coordinate functions
%   for the eccentric ellipse that generates the cruller
%   in the M-file CRULLER.
 
%   C. Henry Edwards, Univerity of Georgia. 6/20/93.
%
%   Copyright (c) 1984-98 by The MathWorks, Inc.
%   $Revision: 5.3 $  $Date: 1997/11/21 23:27:50 $

xt = 3*cos(t);   yt = sin(t);

