matlab从零到进阶简介（小朱分享二）

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matlab从零到进阶简介

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今天小编为大家带来“MATLAB介绍”，

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Today, the editor brings the “Introduction to MATLAB”.

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01

MATLAB是什么？

What is MATLAB?

MATLAB（全称：Matrix Laboratory），中文名称：矩阵实验室，是一款著名的科学计算软件，是美国 MathWorks 公司出品的商业数学软件，用于算法开发、数据可视化、数据 分析以及数值计算的高级技术计算语言和交互式环境，主要包括 MATLAB 和 Simulink 两大部分。

MATLAB (full name: Matrix Laboratory), Chinese name: Matrix Laboratory, is a well-known scientific computing software, a commercial mathematical software produced by MathWorks in the United States, used for algorithm development, data visualization, data analysis and advanced technology of numerical computing Computational language and interactive environment, mainly including MATLAB and Simulink.

02

MATLAB应用领域

MATLAB application areas

MATLAB在数学类科技应用软件中在数值计算方面首屈一指。 可以进行矩阵运算、绘 制函数和数据、实现算法、创建用户界面、连接其他编程语言的程序等，主要应用于工程计算、控制设计、信号处理与通讯、图像处理、信号检测、 金融建模设计与分析等领域。

MATLAB is second to none in the numerical calculation in mathematical technology application software. It can perform matrix operations, draw functions and data, implement algorithms, create user interfaces, connect programs in other programming languages, etc. It is mainly used in an engineering calculation, control design, signal processing and communication, image processing, signal detection, financial modeling design and analysis, etc.

03

MATLAB的优势、特点

The advantages and characteristics of MATLAB

1、良好的工作平台和编程环境

MATLAB由一系列工具组成。这些工具方便用户使用MATLAB的函数和文件，其中许多工具采用的是图形用户界面，包括MATLAB桌面和命令窗口、历史命令窗口、编辑器和调试器、路径搜索和用于用户浏览帮助、工作空间、文件的浏览器。随着MATLAB的商业化以及软件本身的不断升级，MATLAB的用户界面也越来越精致，更加接近Windows的标准界面，人机交互性更强，操作更简单。

1、 Good working platform and programming environment MATLAB consist of a series of tools

These tools facilitate the use of MATLAB functions and files, many of which use a graphical user interface, including the MATLAB desktop and command window, the command history window, editor and debugger, path search and help for user navigation, workspace, file browser. With the commercialization of MATLAB and the continuous upgrading of the software itself, the user interface of MATLAB has become more and more refined, closer to the standard interface of Windows, with stronger human-computer interaction and easier operation.

2、程序语言简单易用

MATLAB语言是基于最为流行的C＋＋语言基础上的，因此语法特征与C＋＋语言极为相似，而且更加简单，更加符合科技人员对数学表达式的书写格式。

2、The programming language is simple and easy to use

The MATLAB language is based on the most popular C language, so the grammatical features are very similar to the C language, and it is simpler and more in line with the writing format of mathematical expressions by scientific and technological personnel.

3、数据处理能力较为强大

MATLAB是一个包含大量计算算法的集合。其拥有600多个工程中要用到的数学运算函数，可以方便的实现用户所需的各种计算功能。函数中所使用的算法都是科研和工程计算中的最新研究成果，而前经过了各种优化和容错处理。在计算要求相同的情况下，使用MATLAB的编程工作量会大大减少。

3、Data processing ability is relatively powerful.

MATLAB is a collection containing a large number of computational algorithms. It has more than 600 mathematical operation functions used in projects, which can easily realize various calculation functions required by users. The algorithms used in the function are the latest research results in scientific research and engineering calculations, and have undergone various optimizations and fault-tolerant processing. With the same computational requirements, the programming effort using MATLAB is greatly reduced.

4、图形处理功能力出色

MATLAB具有方便的数据可视化功能，以将向量和距阵用图形表现出来，并且可以对图形进行标注和打印。高层次的作图包括二维和三维的可视化、图象处理、动画和表达式作图。

4、 Excellent graphics processing capabilities

MATLAB has convenient data visualization functions to represent vectors and matrices in graphics, and the graphics can be marked and printed. High-level graphic includes 2D and 3D visualization, image manipulation, animation, and expression graphic.

5、应用广泛

MATLAB已经把工具箱延伸到了科学研究和工程应用的诸多领域，诸如数据采集、数据库接口、概率统计、样条拟合、优化算法、偏微分方程求解、神经网络、小波分析、信号处理、图像处理、系统辨识、控制系统设计、鲁棒控制、模型预测、模糊逻辑、金融分析、地图工具、非线性控制设计、实时快速原型及半物理仿真、定点仿真、电力系统仿真等，都在工具箱家族中有了自己的位置。

5、Wide application

MATLAB has extended the toolbox to many fields of scientific research and engineering applications, such as data acquisition, database interface, probability statistics, spline fitting, optimization algorithms, partial differential equation solving, neural networks, wavelet analysis, signal processing, image processing , system identification, control system design, robust control, model prediction, fuzzy logic, financial analysis, map tools, nonlinear control design, real-time rapid prototyping and semi-physical simulation, fixed-point simulation, power system simulation, etc., all in the toolbox family has its own place.

04

MATLAB基本绘图函式

MATLAB basic plotting functions

Plot:x轴和y轴均为线性刻度（Linear scale)

Loglog:x轴和y轴均为对数刻度(Logarithmic scale)

Semilogx:x轴为对数刻度，y轴为线性刻度

Semilogy:x轴为线性刻度，y轴为对数刻度

Plot: Both the x-axis and the y-axis are linear scales (Linear scale)

Loglog: Both the x-axis and the y-axis are logarithmic scales (Logarithmic scale)

Semiotics: x-axis is logarithmic scale, y-axis is linear scale

Semiology: x-axis is a linear scale. y-axis is a logarithmic scale

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参考资料：Goolge翻译、图片来源百度

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