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Source Code
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#include <cmath>
using std::sqrt;
using std::atan;
#include <iostream>
using std::cout;
using std::endl;
template <class T>
class rectangular
{
public:
T xco,yco;
rectangular():xco(0),yco(0){}
rectangular(T x,T y):xco(x),yco(y){}
void display_rect()
{
cout<<"rectangular coordintaes: "<<xco<<","<<yco<<"\n";
}
};
template <class S>
class polar
{
S radius,angle;
public:
polar():radius(0),angle(0){}
polar(rectangular<S> r)
{
radius=sqrt(r.xco*r.xco+r.yco*r.yco);
angle=atan(r.yco/r.xco);
}
void display_polar()
{
cout<<"polar coordinates: "<<radius<<","<<angle<<"\n";
}
};
int main()
{
cout<<"Before conversion\n";
rectangular <double> r(4.71,30.56);
r.display_rect();
cout<<"After conversion\n";
polar<double> p(r);
p.display_polar();
}
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