% circle_main.m  a graph of a circle.
%      Demonstrating the loop and
%      graphics interaction
%

h=figure;
set(gcf,'DefaultTextColor','red');
v=get(h);
c=[0 100 100 0 0];
d=[0 0 100 100 0];
plot(c,d, 'r-');
title('Circles');

%

a0=50;
b0=50;
radius=40; % Radius of a circle.
delta=2;
n=4;
circles(a0,b0,radius,n);
%