颜读（2）：新手入门MATLAB

摘要：MATLAB（Matrix Laboratory，矩阵实验室）是由美国MathWorks公司开发的一款高性能数值计算、可视化及编程环境，广泛应用于工程、科学计算、数据分析、算法开发、信号处理、图像处理、控制系统设计、金融建模等领域。Matlab的核心功能包括数

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“颜读（2）：新手入门MATLAB”

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"Yan Du (2):Beginners getting started with MATLAB"

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一、思维导图（Mind Mapping）

二、新手入门MATLAB（Beginners getting started with MATLAB）

1、Matlab基本介绍（Basic Introduction to MATLAB）

MATLAB（Matrix Laboratory，矩阵实验室）是由美国MathWorks公司开发的一款高性能数值计算、可视化及编程环境，广泛应用于工程、科学计算、数据分析、算法开发、信号处理、图像处理、控制系统设计、金融建模等领域。Matlab的核心功能包括数值计算，可视化与图形处理、编程与算法开发、工具箱扩展、simulink仿真。

MATLAB (short for Matrix Laboratory)is a high-performance numerical computing, visualization, and programming environment developed by MathWorks, an American company. It is widely applied across various fields, including engineering, scientific computing, data analysis, algorithm development, signal processing, image processing, control system design, and financial modeling. The core functionalities of MATLAB encompass numerical computing, visualization and graphics processing, programming and algorithm development, toolbox extensions, and Simulink simulation.

2、Matlab入门知识（Introduction to MATLAB Basics）

（1）Matlab界面介绍（Introduction to MATLAB Interface）。

小编使用的软件版本是MATLABR2023b，打开Matlab的界面之后，首先观察左下角文字，“就绪”意味着Matlab做好准备，可以开始正常操作。Matlab的界面默认分为4个大的区域：最上方的菜单栏包含主页、绘图和APP；左侧的当前文件夹用来快速查看并访问文件夹中的文件；中间的命令行窗口可以在命令行中输入代码作为命令；右侧的工作区可以用来查看目前Matlab内存中保存的所有变量或者对象。

The software version I am using isMATLAB R2023b. After opening MATLAB, the first thing to notice is the text in the bottom-left corner: "Ready", which indicates that MATLAB is prepared and ready for normal operation.The MATLAB interface is divided into four main sections by default:The menu bar at the topincludes options like Home, Plots, and APPS;The Current Folder panel on the leftallows you to quickly view and access files within the selected folder;The Command Window in the centeris where you can input code as commands directly into the command line;The Workspace panel on the rightdisplays all variables or objects currently stored in MATLAB's memory.

另外如果关闭了之前Matlab界面，之后你想要找回原来的代码数据，可以选择主页的布局中的命令历史记录，点击“停靠”，即可在界面的右下角恢复代码数据。

Additionally，if you close the previous MATLAB interface and later want to retrieve your original code or data, you can select "Command History" under the Layout tab in the Home section. Click "Dock" to restore the command history panel, which will display your code data in the bottom-right corner of the interface.

(2)创建Matlab脚本（Create a MATLAB Script）

关闭matlab之后，出现之前写的代码都消失了，如果你希望自己的代码能够重复使用的话，Matlab提供了另一种功能，就是创建脚本文件(m文件)，其后缀默认为.m。

After closing MATLAB, if you find that the code you wrote previously has disappeared, and you want your code to be reusable, MATLAB provides another feature: creating script files (M-files), which by default have the.m file extension.

建立或打开m文件后，Matlab最上方的菜单栏会出现三个新的选项，大家可以点击视图勾选上高亮显示当前行、行号和数据提示，这个对大家的学习很有帮助。另外Matlab可以新建实时脚本，实时脚本的文件后缀是.mlx。实时脚本功能更加丰富，文字区域和代码区域是分开的，并且你可以插入图片、方程和公式。

After creating or opening an M-file (.m file), three new options will appear in the menu bar at the top of MATLAB. You can click on View and enable features like Highlight Current Line, Line Numbers, and Data Tips, which are very helpful for learning. Additionally, MATLAB allows you to create a Live Script, whose file extension is .mlx. Live Scripts offer richer functionality, with separate text and code regions, and you can insert images, equations, and formulas.

（3）Matlab帮助系统（MATLAB Help System）

新手小白在使用Matlab过程中出现困难，可以采用以下四种方法启用帮助系统。

a.Matlab官网搜索;

b.标准使用DOC命令;

c.标准使用help命令；

d．标准使用edit命令。

For beginners who encounter difficulties while using MATLAB, you can activate the help system using the following four methods:
a. Search on the official MATLAB website;
b. Use the standard doc command;
c. Use the standard help command;
d. Use the standard edit command.

这里小编使用edit命令举例，使用edit加上要查找的命令就能打开这个命令的m文件。小编在命令行窗口输入“edit sum”，如下图所示。

Here, I'll use theedit command as an example. By typing edit followed by the name of the command you want to explore, you can open the corresponding M-file for that command. For instance, I entered edit sum in the Command Window, as shown in the figure below.

（4）矩阵和数组(Matrix and Array)

对Matlab进行数组创建，需要先在命令行窗口输入代码，然后按下回车键，即可运行结果。创建每行包含四个元素的数组，请使用逗号或空格分隔各元素。输入情况和运行结果如下图所示。

To create an array in MATLAB, you first need to enter the code in the Command Window and then press theEnter key to execute it and view the result. To create an array where each row contains four elements, use commas or spaces to separate the elements. The input and the resulting output are shown in the figure below.