cable.m

本学期刚刚开始学习数字信号处理课程

clear                  %图形保持
clc                    %清屏
t=0:pi/10000:2*pi;
axis([-1.2 1.2 -1.2 1.2]);
hold on               %图形保持
axis square           %设置坐标
x1=sin(t);
y1=cos(t);
plot(x1,y1,'k');
fill(x1,y1,'k');
x2=0.9*sin(t);
y2=0.9*cos(t);
plot(x2,y2,'y');
fill(x2,y2,'y');
x3=0.8*sin(t);
y3=0.8*cos(t);
plot(x3,y3,'k');
fill(x3,y3,'k');
x4=0.75*sin(t);
y4=0.75*cos(t);
plot(x4,y4,'w');
fill(x4,y4,'w');
x5=0.35*sin(t);
y5=0.35*cos(t);
plot(x5,y5,'k');
fill(x5,y5,'k');
a=0.3*sin(t);
b=0.3*cos(t);
plot(a,b);
fill(a,b,'y');