MATLAB工程师与科学家必读：第5版精华指南

5星 · 超过95%的资源需积分: 9 96 浏览量更新于2024-07-22 5 收藏 14.56MB PDF 举报

"Essential MATLAB for Engineers and Scientists"是2013年第五版的一本教材，专注于教授工程师和科学家如何使用MATLAB这一强大的数学计算软件。由Brian H. Hahn和Daniel T. Valentine合著，出版于Elsevier的Academic Press系列。 MATLAB是一种广泛应用于工程、科学和数学领域的编程环境，它提供了丰富的内置函数和工具，用于数值计算、符号计算、数据可视化以及应用程序开发。本书旨在帮助读者掌握MATLAB的基础知识和高级应用，从而在实际工作和研究中高效利用这一平台。在书中，作者可能涵盖了以下关键知识点： 1. **MATLAB基础知识**：包括MATLAB的工作环境，如命令窗口、工作空间、编辑器和绘图功能。学习如何创建、编辑和运行MATLAB脚本及函数。 2. **数据类型与变量**：介绍MATLAB中的基本数据类型，如标量、向量、矩阵以及复数，以及如何进行算术运算和逻辑操作。 3. **控制结构**：讲解流程控制，如循环（for和while）、条件语句（if-else）和函数的使用，这些都是编写复杂MATLAB程序的基础。 4. **数组和矩阵操作**：MATLAB的核心是矩阵运算，书里会详细介绍矩阵的创建、索引、转置、乘法和逆等操作。 5. **函数和脚本**：如何定义和调用自定义函数，以及如何组织和管理脚本文件。 6. **数值分析**：涵盖插值、拟合、积分、微分和解线性代数方程组等数学计算方法。 7. **可视化**：MATLAB的强大在于其图形绘制能力，书中会讲解如何创建2D和3D图形，以及如何定制图形属性和交互式操作。 8. **文件输入输出**：如何读取和写入各种数据文件，包括文本文件、CSV和二进制文件。 9. **高级话题**：可能涉及面向对象编程、单元测试、并行计算和MATLAB与其他语言（如C++或Java）的接口。 10. **应用示例**：书中通过实例展示了MATLAB在工程问题和科学研究中的应用，如信号处理、图像分析、控制系统设计等。此外，作者可能还会强调MATLAB的最新版本特性和更新，以确保读者能掌握最新的工具和技术。不过，需要注意的是，MATLAB的商标属于The MathWorks, Inc.，书中的内容并非该公司官方授权或认可的教学材料，而是作者根据个人理解和经验编写的。未经出版商许可，不得复制或传播本书的任何部分。如果需要使用书中的内容，应事先获得出版社的正式许可。这保证了对知识产权的尊重，并符合出版业的规范。

1.1 Using MATLAB

Note that clear executed by itself clears all local variables in the workspace; >>

clear pi clears the locally deﬁned variable pi. In other words, if you decide

to redeﬁne a built-in function or command, the new value is used! The com-

mand whos is executed to determine the list of local variables or commands

presently in the workspace. The ﬁrst execution of the command pi = 4 in the

above example displays your redeﬁnition of the built-in pi: a 1-by-1 (or 1×1)

double array, which means this data type was created when pi was assigned a

number (you will learn more about other data types later, as we proceed in our

investigation of MATLAB).

1.1.4 Functions and commands

MATLAB has numerous general functions. Try date and calendar for starters.

It also has numerous commands, such as clc (for clear command window). help

is one you will use a lot (see below). The difference between functions and

commands is that functions usually return with a value (e.g., the date), while

commands tend to change the environment in some way (e.g., clearing the

screen or saving some statements to the workspace).

1.1.5 Vectors

Variables such as a and b that were used in Section 1.1.2 above are called sca-

lars; they are single-valued. MATLAB also handles vectors (generally referred to

as arrays), which are the key to many of its powerful features. The easiest way

of deﬁning a vector where the elements (components) increase by the same

amount is with a statement like:

>> x = 0 : 10; <Enter>

That is a colon (:) between the 0 and the 10. There is no need to leave a space

on either side of it, except to make it more readable. Enter x to check that x is a

vector; it is a row vector—consisting of 1 row and 11 columns. Type the follow-

ing command to verify that this is the case:

>> size(x) <Enter>

Part of the real power of MATLAB is illustrated by the fact that other vectors can

now be deﬁned (or created) in terms of the just deﬁned vector x. Try:

>> y = 2 .* x <Enter>

>> w = y ./ x <Enter>

and

>> z = sin (x) <Enter>

(no semicolons). Note that the ﬁrst command line creates a vector y by multi-

plying each element of x by the factor 2. The second command line is an array

operation, creating a vector w by taking each element of y and dividing it by

CHAPTER 1: Introduction

Built-in

solve function. Type the following commands (exactly as they are):

The function double converts x and y from symbolic objects (another data type

in MATLAB) to double arrays (i.e., the numerical-variable data type associated

with an assigned number).

To check your results, after executing either approach, type the following com-

mands (exactly as they are):

The % Symbol is a ﬂag that indicates all information to the the right is not part

of the command but a comment. (We will examine the need for comments

when we learn to develop coded programs of command lines later on.)

1.1.7 Tutorials and demos

If you want a spectacular sample of what MATLAB has to offer, type the command

demo on the command line. After entering this command the Help documen-

tation is opened at MATLAB Examples (see Figure 1.3). Left-click on “Getting

Started.” This points you to the list of tutorials and demonstrations of MATLAB

applications that are at your disposal. Click on any of the other topics to learn

more about the wealth of capabilities of MATLAB. You may wish to review the

tutorials appropriate to the topics you are examining as part of your technical

computing needs. Scroll down to the “New Features Video” to learn more about

the Desktop and other new features, some of which are introduced next.

1.2 THE DESKTOP

A very useful feature of MATLAB R2012b is the fact that when you ﬁrst open it,

it creates the folder named MATLAB (if it does not already exist) in your Docu-

ments folder. The ﬁrst time it does this, there are no items in the folder and,

hence, the Current Folder panel will be empty. This new folder in your Docu-

ments is the default working folder where all the ﬁles your create are saved.

The location of this folder is given in the ﬁrst toolbar above the Command

Window. The location is C:\Users\Clara\Documents\MATLAB. This format of

the location was determined by pointing and left-clicking the mouse in the line

just above the Command Window.

剩余415页未读，继续阅读

xd_laoxie

粉丝: 2
资源: 11

MATLAB工程师与科学家必读：第5版精华指南

GPU.Programming.in.MATLAB.0128051329

GPU Programming in MATLAB

Essential MATLAB for Engineers and Scientists(6th) epub

statistics for engineers and scientists 课后练习

serway - physics for scientists and engineers 6e

physics for scientists and engineers serway jewett

probability and statistics for engineers and scientists,download

matlab maker

matlab+programming+for+engineers(中文翻译).pdf

polt matlab

最新资源