Complex nos

Complex nos #include<iostream.h> #include<conio.h> class complex { private: float real,img; public: void assign(float x,float y) { real=x; img=y; } void print() { if(img>=0) cout<<real<<"+"<<img<<"i"; else cout<<real<<img<<"i"; getch(); } }; void add( float a,float b,float c, float d) { float e,f;complex g; e=a+c; f=b+d; g.assign(e,f); g.print(); } void sub( float a,float b,float c, float d) { float e,f;complex g; e=a-c; f=b-d; g.assign(e,f); g.print(); } void mul( float a,float b,float c, float d) { float e,f; complex g; e=a*c-b*d; f=b*c+a*d; g.assign(e,f); g.print(); } void main() { float a,b,c,d; complex x,y,z; clrscr(); cout<<" for complex 1:"; cout<<"real part:"; cin>>a; cout<<"imaginary part:"; cin>>b; cout<<" for complex 2:"; cout<<"real part:"; cin>>c; cout<<"imaginary part:"; cin>>d; x.assign(a,b); y.assign(c,d); cout<<"**************original data:************\n"; cout<<"Complex 1:\n";x.print(); cout<<"\n Complex 2:\n";y.print(); cout<<"\n************=================**********\n"; cout<<"\n Addition:\n";add(a,b,c,d); cout<<"\n Subtraction:\n";sub(a,b,c,d); cout<<"\n Multipication:\n";mul(a,b,c,d); }