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4) 创建一个名为Complex的类，进行复数的算术运算。复数的形式为： realpart+imaginarypart*i 用浮点变量表示类的private数据。提供构造函数，能够对所声明的该类对象进行初始化。在不提供初始化值的情况下，该构造函数应包含默认值。针对以下功能，分别提供一个public成员函数。 （1）两个复数相加； （2）两个复数相减 （3）用（a, b）的形式打印复数，其中a为实部，b为虚部。 (4) Create a class called Complex, and perform complex arithmetic operations. Plural form: realpart+imaginarypart* i said private data class with floating point variables. Provide a constructor, the object can be declared for the class is initialized. In the case do not provide initialization values, the constructor should contain default values. For the following functions, which provide a public member function. (A) two complex numbers (2) the subtraction of two complex (3) (a, b) in the form of plural printing, where a is the real part, b is the imaginary part.)

MATLAB2010基础教程，快速掌握MATLAB，短时间内是你运用自如。(MATLAB2010 Essentials, quickly grasp MATLAB, a short period of time that you use it freely.)

example: 演示程序 creatData:生成数据 creatTrainLabelMat:生成数据标签 LDA:提取fisherface knnRecognition:knn分类器 knnsearch:knn搜索(example: demo creatData: generate data creatTrainLabelMat: generating data label LDA: Extract fisherface knnRecognition: knn classifier knnsearch: knn search)

THE MATLAB COMMUNICATION TOOLBOX

说明：  emd分解及其重构,分解成对个IMF，然后进行重构(emd emperical modal decomposition)

说明：  本Matlab程序是《现代信号处理》中利用MUSIC算法进行的谐波恢复的仿真程序(The Matlab program is )

《matlab应用大全》赵海滨编著，清华大学出版社，第九章主讲二维数据可视化(The application of matlab Zhao Haibin compiled, tsinghua university press, chapter 9 on two-dimensional data visualization)

自适应步长的Runge-Kutta-Fehlberg法解初问题常微分刚性方程组(Adaptive step size Runge-Kutta-Fehlberg method for solving initial problem of ordinary differential equations)

运用MATLAB软件对层次分析法做进一步的探索与研究，对选购手机有一定的借鉴意义(Using MATLAB software AHP for further exploration and research on purchasing mobile phones have some reference)

几个对多径衰落信道的仿真程序，多径衰落是无线通信中的关键问题之一，仿真程序有助于加深对该过程的理解。(failed to translate)