C++中的復(fù)數(shù)類

1、.c+中的復(fù)數(shù)類/類的定義（mycomplex.h）#include #ifndef mycomplex_h#define mycomplex_hclass complexprivate: float real; float image; public: complex(float=0.0,float=0.0); /構(gòu)造函數(shù) complex(const complex &c); /拷貝構(gòu)造函數(shù)/以下為運算函數(shù)complex add(const complex &c) const; /加運算 complex sub(const complex &c) const; /減運算 complex mu

2、l(const complex &c) const; /乘運算 complex div(const complex &c) const; /除運算 /以下為普通成員函數(shù)float getreal(void) const; /獲取實部 float getimage(void) const; /獲取虛部 void setcomplex(float r,float i); /重新設(shè)定復(fù)數(shù)值 /以下為輸出輸入函數(shù)重載friend ostream& operator(istream& in,complex& c); /輸入重載 /以下為運算符重載friend complex operator+(floa

3、t r,const complex& c); /friend complex operator+(int r,const complex& c);friend complex operator-(float r,const complex& c);friend complex operator-(int r,const complex& c);friend complex operator*(float r,const complex& c);friend complex operator*(int r,const complex& c);friend complex operator+(co

4、nst complex& c,float r);friend complex operator+(const complex& c,int r);friend complex operator-(const complex& c,float r);friend complex operator-(const complex& c,int r);friend complex operator*(const complex& c,float r);friend complex operator*(const complex& c,int r);friend complex operator/(fl

5、oat r,const complex& c);friend complex operator/(int r,const complex& c);friend complex operator/(const complex& c,float r);精品.friend complex operator/(const complex& c,int r);friend complex operator+(const complex& c1,const complex& c2);friend complex operator-(const complex& c1,const complex& c2);

6、friend complex operator*(const complex& c1,const complex& c2);friend complex operator/(const complex& c1,const complex& c2);/定義虛數(shù)單位ie const complex ie(0,1);#endif/類的實現(xiàn)(mycomplex.cpp)#include #include mycomplex.h/構(gòu)造函數(shù) complex:complex(float r,float i)real=r;image=i;/拷貝構(gòu)造函數(shù) complex:complex(const comple

7、x &c)real=c.real;image=c.image;/加運算 complex complex:add(const complex &c) constcomplex t;t.real=real+c.real;t.image=image+c.image;return t;/減運算 complex complex:sub(const complex &c) const complex t;精品.t.real=real-c.real;t.image=image-c.image;return t;/乘運算 complex complex:mul(const complex &c) constc

8、omplex t;t.real=real*c.real-image*c.image;t.image=image*c.real+real*c.image;return t;/除運算 complex complex:div(const complex &c) constif(!(c.real|c.image) cout分母不能為零endl; exit; complex t; t.real=(real*c.real+image*c.image)/(c.real*c.real+c.image*c.image); t.image=(c.real*image-c.image*real)/(c.real*c

9、.real+c.image*c.image); return t;/獲取實部 float complex:getreal(void) constreturn real;/獲取虛部 float complex:getimage(void) constreturn image;/設(shè)定復(fù)數(shù)值 void complex:setcomplex(float r,float i)精品.real=r;image=i;/輸出重載 ostream& operator0) outc.real+c.imagei; if(c.image0) outc.realc.imagei; if(c.image=0) out(is

10、tream& in,complex& c)inc.realc.image;return in;/以下為運算符重載 complex operator+(float r,const complex& c)complex t;t.real=r+c.real;t.image=c.image;return t; complex operator+(int r,const complex& c)complex t;t.real=r+c.real;t.image=c.image;return t; complex operator-(float r,const complex& c)complex t;t.

11、real=r-c.real;t.image=c.image;精品.return t; complex operator-(int r,const complex& c)complex t;t.real=r-c.real;t.image=c.image;return t; complex operator*(float r,const complex& c)complex t;t.real=r*c.real;t.image=r*c.image;return t; complex operator*(int r,const complex& c)complex t;t.real=r*c.real;

12、t.image=r*c.image;return t; complex operator+(const complex& c,float r)complex t;t.real=r+c.real;t.image=c.image;return t; complex operator+(const complex& c,int r)complex t;t.real=r+c.real;t.image=c.image;return t; complex operator-(const complex& c,float r)精品.complex t;t.real=r-c.real;t.image=c.im

13、age;return t; complex operator-(const complex& c,int r)complex t;t.real=r-c.real;t.image=c.image;return t; complex operator*(const complex& c,float r)complex t;t.real=r*c.real;t.image=r*c.image;return t; complex operator*(const complex& c,int r)complex t;t.real=r*c.real;t.image=r*c.image;return t; c

14、omplex operator/(float r,const complex& c)complex t(r,0);return t.div(c);complex operator/(int r,const complex& c)complex t(float)r,0);return t.div(c);complex operator/(const complex& c,float r)精品.complex t;t.real=c.real/r;t.image=c.image/r;return t;complex operator/(const complex& c,int r)complex t

15、;t.real=c.real/(float)r;t.image=c.image/(float)r;return t;complex operator+(const complex& c1,const complex& c2)return c1.add(c2);complex operator-(const complex& c1,const complex& c2)return c1.sub(c2);complex operator*(const complex& c1,const complex& c2)return c1.mul(c2);complex operator/(const complex& c1,const complex& c2)return c1.div(c2);/類的測試(test.cpp)#include #include mycomplex.h int main()/測試函數(shù)運算complex c1,c2; c1.setcomplex(1,2);精品. c2.setcomplex(2,3); coutc1+c2=c1.add(c2)endl; coutc1-c2=c1.sub(c2)endl; coutc1*c2