Basic signal - matrix pulse signal (gate function)

The mathematical expression of the gate function is:

example1: The matlab code for the rectangular pulse signal is as follows:

%矩形脉冲信号
clc;
clear;
close all;
t=0:0.001:4;
T=1;
ft=rectpuls(t-2*T,2*T);
plot(t,ft);

The result of the operation is as follows: 

example2: The matlab code for the rectangular pulse signal is as follows:

t=-4:0.001:4;                      %定义时间变量范围
T=2;                               %定义矩形波的脉宽
f=rectpuls(t,T);                   %生成一个矩形波信号
plot(t,f)                          %绘制矩形波图形
grid on;                           %显示网格线
axis([-4 4 -0.5 1.5])              %限制图的横纵坐标的显示范围
xlabel('t');                       %给横坐标命名
ylabel('f(t)');                    %给纵坐标命名
title('矩形波信号f(t)');            %给整个图形定义一个标题

 The result of the operation is as follows: 

 

 References: Signals and Systems (2nd Edition) - edited by Chen Houjin