%ÑÓã ÊÇÈÚ Ê˜ ãÊÛ?Ñå
subplot(3,1,1);
x=linspace(-10,10,200);
f=sin(x);
plot(x,f)
%ÑÓã ÊÇÈÚ Ïæ ãÊÛ?Ñå
subplot(3,1,2)
x=linspace(-5,5,200);
y=linspace(-5,5,200);
[x,y]=meshgrid(x,y);
z=sin(x).*cos(y);
surf(x,y,z)
%ÑÓã ÊÇÈÚ ÏÑ ãÎÊÕÇÊ ÞØÈ?
subplot(3,1,3)
theta=linspace(0,2*pi,200);
t=sin(cos(2.*theta));
polar(theta,t)