figure0516.m

1． 该光盘包含了“信号与系统分析及MATLAB实现”第五章的所有程序； 2． 为了方便读者阅读程序

t = 0:pi/20:2*pi;
[x,y] = meshgrid(t);
subplot(2,2,1)
plot(sin(t),cos(t)) 
axis equal
subplot(2,2,2)
z = sin(x)+cos(y);
plot(t,z)
axis([0 2*pi -2 2])
subplot(2,2,3)
z = sin(x).*cos(y);
plot(t,z)
axis([0 2*pi -1 1])
subplot(2,2,4)
z = (sin(x).^2)-(cos(y).^2);
plot(t,z)
axis([0 2*pi -1 1])