ex0605.m

1． 该光盘包含了“信号与系统分析及MATLAB实现”一书的第六章所有程序； 2． 为了方便读者阅读程序

%画例6.5的程序
syms t
f=sym('(t/2+1)*(heaviside(t+2)-heaviside(t-2))')
subplot(2,3,1),ezplot(f,[-3,3])
y1=subs(f,t,t+2)
subplot(2,3,2),ezplot(y1,[-5,1])
y2=subs(f,t,t-2)
subplot(2,3,3),ezplot(y2,[-1,5])
y3=subs(f,t,-t)
subplot(2,3,4),ezplot(y3,[-3,3])
y4=subs(f,t,2*t)
subplot(2,3,5),ezplot(y4,[-2,2])
y5=-f
subplot(2,3,6),ezplot(y5,[-3,3])