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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.)

MATLAB整流器仿真，采用三电平结构，实现单位功率因数输入。(MATLAB rectifier simulation, using a three-level structure to achieve unity power factor input.)

MATLAB SIMULINK与控制系统仿真 王正林等编着(MATLAB/SIMULINK and control system)

matlab数值分析计算源代码，供广大研究者学习(Numerical Analysis matlab source code, for the majority of researchers to learn)

ASK调制解调，用C++语言进行运行，学习的好资料(ASK modulation and demodulation, using C++ languages running, learning good information)

Visual Studio 2008 下可以编译通过的CJLibary.(CJLibrary version 6.08c with Visual Studio 2008 project.)

仿MATLAB矩阵C++运算库,包括加、减、乘、除、点加、点减、点乘、点除、赋值、转置、rank、det、eig、svd、pinv、power等的运算。inv运算使用pinv运算。最难实现的是非方阵的除法。(MatLab Matrix simulator)

潮流计算C++程序，计算ieee4 5 14 30 57 118 300(Power Flow calculation program)

2007电工杯数学建模A题机组组合的LINGO程序源代码 (The Electrotechnical Cup 2007 A question of procedure)

说明：  从方程组中消去一些未知函数及其各阶导数，得到只含有一个未知函数的高阶常系数线性微分方程(Eliminated from the equations of some unknown function and its first derivative, the only unknown function contains a higher-order linear differential equations with constant coefficients)