function circle(cx, cy, r, linetype) N = 150 x = zeros(1,N+1) y = zeros(1,N+1) for n=1:N+1 x(n) = cx + r*cos(2*pi*n/N) y(n) = cy + r*sin(2*pi*n/N) end hold on plot(x, y, linetype) hold off -function circle(cx, cy, r, lin