c++中的复数类

1、C+ 中的复数类专业资料/ 类的定义( mycomplex.h ) #include #ifndef mycomplex_h #define mycomplex_h class complexprivate:float real; float image;public:complex(float=0.0,float=0.0); complex(const complex &c);/ 以下为运算函数 complex add(const complex &c) const; complex sub(const complex &c) const; complex mul(const complex

2、 &c) const; complex div(const complex &c) const;/ 以下为普通成员函数 float getreal(void) const; float getimage(void) const; void setcomplex(float r,float i);/ 以下为输出输入函数重载/ 构造函数/ 拷贝构造函数/ 加运算 / 减运算 / 乘运算 / 除运算/ 获取实部/ 获取虚部/ 重新设定复数值/ 输出重载/ 输入重载friend ostream& operator(istream& in,complex& c);/ 以下为运算符重载/friend co

3、mplex 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*(float r,const complex& c); friend complex operator*(int r,const complex& c); fri

4、end 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*(const complex& c,float r); friend complex operator*(const complex& c,int r

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

6、complex& c1,const complex& c2); friend complex operator*(const complex& c1,const complex& c2); friend complex operator/(const complex& c1,const complex& c2);/ 定义虚数单位 ieconst complex ie(0,1);#endif/ 类的实现 (mycomplex.cpp)#include #include mycomplex.h/ 构造函数complex:complex(float r,float i)real=r;image=i;

7、/ 拷贝构造函数complex:complex(const complex &c)real=c.real;image=c.image;/ 加运算complex complex:add(const complex &c) constcomplex t;t.real=real+c.real;t.image=image+c.image; return t;/ 减运算complex complex:sub(const complex &c) constcomplex t;t.real=real-c.real;t.image=image-c.image;return t;/ 乘运算complex com

8、plex:mul(const complex &c) constcomplex t;t.real=real*c.real-image*c.image; t.image=image*c.real+real*c.image; return t;/ 除运算complex complex:div(const complex &c) constif(!(c.real|c.image)cout 分母不能为零 endl;exit;complex t;t.real=(real*c.real+image*c.image)/(c.real*c.real+c.image*c.image); t.image=(c.r

9、eal*image-c.image*real)/(c.real*c.real+c.image*c.image); return t;/ 获取实部float complex:getreal(void) constreturn real;/ 获取虚部float complex:getimage(void) constreturn image;/ 设定复数值void complex:setcomplex(float r,float i)real=r;image=i;/ 输出重载ostream& operator0) outc.real+c.imagei;if(c.image0) outc.realc

10、.imagei;if(c.image=0) out(istream& in,complex& c) inc.realc.image; return in;/ 以下为运算符重载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-(f

11、loat 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.real=r*c.real;t.image=r*c.image;return t;complex operator*(int r,const com

12、plex& c) complex t;t.real=r*c.real;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) comple

13、x 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) 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

14、;t.image=r*c.image;return t;complex 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) complex t;t.real=c.real/r;t.image=c.image/r;return t;complex operator/(const

15、 complex& c,int r)complex t;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);/ 类的测试 (test.cpp)#include #include mycomplex.hint main()/ 测试函数运算complex c1,c2;c1.setcomplex(1,2);c2.setcomplex(2,3); coutc1+c2=c1.add(c2)endl;coutc1-c2=c1.s