复数的四则运算 (2).doc

/ ComplexCal.cpp : 定义控制台应用程序的入口点。/*/* 作者：liuyong */* 时间：2011-1-16 */* 实现：复数的四则运算 */*/#include stdafx.h#include #define EPSION 0.000001 /浮点数的精度，便于进行比较运算；typedef double RType; /复数的实部与虚部 数据类型；struct ComplexRType real; /复数的实部；RType imag; /复数的虚部；;using namespace std;/*/* 复数的加法：x1=a+bi,x2=c+di/* x1+x2=(a+bi)+(c+di)=(a+c)+(b+d)i */*/Complex addComplex(Complex x1,Complex x2)struct Complex result;result.real = x1.real + x2.real;result.imag = x1.imag + x2.imag;return result;/*/* 复数的减法：x1=a+bi,x2=c+di/* x1-x2=(a+bi)-(c+di)=(a-c)+(b-d)i */*/Complex subComplex(Complex x1,Complex x2)Complex result;result.real = x1.real - x2.real;result.imag = x1.imag - x2.imag;return result;/*/* 复数的乘法： x1=a+bi,x2=c+di/* x1*x2=(a+bi)*(c+di)=(a*c-b*d)+(b*c+a*d)i */*/Complex multiComplex(Complex x1,Complex x2)Complex result;result.real = x1.real*x2.real - x1.imag*x2.imag;result.imag = x1.imag*x2.real + x1.real*x2.imag;return result;/*/* 复数的除法：x1=a+bi,x2=c+di/* x1/x2=(a+bi)/(c+di)=(a*c+b*d)/(c2+d2)+(b*c-a*d)/(c2+d2)i */*/Complex divComplex(Complex x1,Complex x2)Complex result;result.real = (x1.real*x2.real+x1.imag*x2.imag)/(x2.real*x2.real+x2.imag*x2.imag);result.imag = (x1.imag*x2.real-x1.real*x2.imag)/(x2.real*x2.real+x2.imag*x2.imag);return result;/*/* 输出复数 */*/void printComplex(Complex x)if (x.imag = -EPSION) & (x.imag = EPSION)printf(%f n,x.real); elseprintf(%f + %f i n,x.real,x.imag); int _tmain(int argc, _TCHAR* argv)Complex x1 = 3.0,6.0,x2 = 2.0,4.0;Complex result = addComplex(x1,x2);printComplex(result); /printComplex(addComplex(x1,x2);printComplex(subComple