end
if x(k+1,i)>40
x(k+1,i)=x(k+1,i)-40; elseif x(k+1,i)<0 x(k+1,i)=x(k+1,i)+40; end
if y(k+1,i)>40
y(k+1,i)=y(k+1,i)-40; elseif y(k+1,i)<0 y(k+1,i)=y(k+1,i)+40; end end end
for i=1:k pause(0.2)
plot(x(i,:),y(i,:),'o',xs(i,:),ys(i,:),'r*') axis([0 40 0 40]) getframe; end
20