% triangle composition - using recursion.
%
   h=figure;
   set(gcf,'DefaultTextColor','red');
   v=get(h);
 
   % The axis of the graph.
   c=[-100 100 100 -100 -100]; %square's corners.
   d=[-100 -100 100 100 -100];
   plot(c,d, 'g-'); %g -for green
                             % - for line
   title('Transform: rotation');
   
   len=100;
   angle_rad=0;
   %square_transform(len,angle_rad);
   n=10; % The number of squares.
  for(i=1:n)
     angle_rad=i*360/n*pi/180; % degrees to radians.
     square_transform(len,angle_rad);
 end