matlab画等份圆

x=cos(t)y=sin(t)

plot(x,y,':r')%画单位圆

axis equal%横纵坐游掘升标轴单位统一，使画散段出的圆变圆

grid on%网格

hold on%保持图形，以等分它神老

for i=0:15

plot([0,cos(pi*i/4)],[0,sin(pi*i/4)],'r')

end%画八等分的园

>>alpha=n/2/pi

>>x=12*cos(alpha)

>凳肢>y=12*sin(alpha)

>>x=[xzeros(size(x))]

>>y=[yzeros(size(y))]

>碰凳>x=x(:)

>>y=y(:)

>>笑粗旅 ezplot('12*cos(t)','12*sin(t)')

>>hold on

>>plot(x,y)

>>hold off