real_exp.m

经典《信号与系统》教程的matlab例程,对深入理解信号与系统相关概念有很大帮助

% Name: Even_Odd.m
t=-10:0.01:10;
n=-10:10;
x1=exp(.2*t);
x2=exp(.2*n);
subplot(221)
stem(n,x2,'r.')
title('The exponential sequence x[n]')
xlabel('Index n')
grid on
subplot(222)
plot(t,x1,'r')
title('The exponential signal x(t)')
xlabel('Time t')
grid on