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Jingdong book

MATLAB面向对象编程——从入门到设计模式

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Jingdong book

MATLAB面向对象编程——从入门到设计模式

Name: MATLAB面向对象编程——从入门到设计模式
Brand: Jingdong book
SKU: 3118197801
Price: 33.58 USD
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Content Description

MATLAB面向对象编程——从入门到设计模式
分为三部分。
第一部分介绍MATLAB面向对象编程基础知识，包括什么是类，类之间的基本关系，以及MATLAB提供的面向对象编程语言的具体功能；
第二部分是面向对象编程的进阶篇，对概念进行归类，方便读者在编程中遇到问题时查询和检索；
第三部分把面向对象编程的方法应用到实际问题中，并且从实际问题中抽象出一般的解决方法，即设计模式。
本书可作为高等院校本科生、研究生MATLAB课程的辅助读物，也可作为从事科学计算、程序设计的科研人员的参考书。

Author Description

徐潇，软件工程师，物理博士，研究方向为电子结构计算、密度泛函算法开发；计算机硕士，研究方向为图像处理。在科研编程中经历了开发大型程序难以维护的困难，花了很多时间用于改进程序但总不尽如人意。从2009 年接触并开始使用MATLAB面向对象编程，发觉工程进度被迅速加快，于是萌生了写一本介绍MATLAB 面向对象编程的书的念头，希望把这个优秀的工具介绍给大家。

李远，研究员（Senior Research Scientist），物理博士，研究方向为光电子器件；硕士就读于北京交通大学，后在Wake Forest University 取得物理博士学位，曾在华盛顿大学做博士后。希望这本《MATLAB面向对象编程——从入门到设计模式》能够给工程科学领域的工作者带来更多方便，尤其是在一些需要长期使用而且不断更新的程序上。

Introduction

MATLAB 中文论坛创始人math：该书的第一位受益者
（代序）
2009 年末，我应中国科学院南京土壤研究所（简称土壤所）的邀请，与他们的科研人员一起开发“土壤红外光谱信息系统”。这个系统非常复杂，它涉及中国海量土壤光谱数据的快速存储和读取，数据处理算法的开发、调试和验证，以及客户端多界面（GUI）的开发。其中, 数据存取使用的是MATLAB 数据库工具箱和MySQL 数据库；数据处理算法（包括数据的滤波处理、降维、数据的匹配、预测等）使用的是MATLAB 统计学工具箱、优化工具箱和神经网络工具箱；客户端的界面非常多，如数据库的可视化操作、算法参数的在线调试以及数据处理结果的展示等，所有的界面都是使用MATLB GUIDE 完成的。从把系统的要求整理出来，到系统第一个版本的完成，用了将近1 个月的时间。由于是密集型开发，所以在这段时间内我对整个系统的流程、架构非常熟悉，因此开发起来也不是特别困难。该系统在2010 年获得了中国软件的著作权（编号：2010R11L027920）。
2013 年，土壤所再次邀请我。他们想对这个系统进行升级，并做成网络版——只要用户能连接网络并且使用MATLAB，就能使用这个系统，使之不仅仅局限于在土壤所使用，更希望它能服务于所有的科研人员，同时给该系统增加多种算法。土壤所成立了专门的研究小组以开发和维护此系统。当我在思考如何指导该研究小组升级系统时，我面临一个比较棘手的问题：如果对原系统进行升级，需要改动的地方特别多。因为数据的读写、算法的运用以及界面展示这三者之间是高度耦合的，很多函数的实现都是在MATLAB GUIDE 的回调函数里完成的。对于一个复杂的系统来说，一个地方的小小改动，通常需要测试整个系统架构和算法的稳定性，而且这也不利于系统更新。那么，科研人员有了新的数据匹配的算法，如何通过改变最少的代码来实现新的算法，同时又能保证系统的完整性和可靠性呢？
有一天我跟徐潇一起吃午饭，跟他分享了我遇到的问题。徐潇告诉我，软件设计中，解决这个问题的标准方法是使用面向对象编程和MVC（Model-View-Controller，模型-视图-控制器）模式。虽然看起来这有点浪费以前的代码，但对于系统的长远稳定性和易维护性来说，这是大型系统的不二选择。而且他正在写一本关于MATLAB 面向对象编程的书。他说，如果我感兴趣，他可以单独用一章专门来写如何基于MATLAB 面向对象编程实现MVC。我说好，你写好我第一个使用。两个星期后，徐潇发给我一个PDF 文件，以非常通俗的例子诠释了如何实现MVC 的过程，就是大家现在所看到的该书第7 章：分离用户界面和模型。我在使用的过程中，充分地感受到了MATLAB 面向对象编程的强大。我大概花了10 小时的时间，就把2009 年的系统架构改成了MVC 的架构。2013 年8 月，我把新的架构展示给了土壤所负责系统开发和维护的研究小组。该研究小组成员对MATLAB 语言了解不是很多，但是这并没有阻碍他们开发系统，因为我们已经完全把算法的模型（Model）、界面视图（View）以及如何实现用户输入的获取（如键盘、鼠标事件）这三者完全分开，放在了不同的类（Class）中。研究小组在一个星期之内就掌握了系统的架构，并且能独立地对系统进行开发和维护。以上是我的亲身经历。

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