include iostream include math using namespace std class PointSphere pr

#include <iostream>
#include <math.h>

using namespace std;


class PointSphere{
private:
    double lat, lon, rad, x, y, z;
public:
    double ConvertToPolar(double x, double  y, double z){
        lat = atan(pow((pow(x,2) + pow(y,2)),0.5)/z);
        lon = atan(x/y);
        rad = sqrt(pow(x,2) +  pow(y,2) + pow(z,2));
        return (lat, lon, rad);
    }

    double ConvertToDescartes(double lat, double  lon, double rad){
        x = rad*cos(lat)*cos(lon);
        y = rad*cos(lat)*sin(lon);
        z = rad*sin(lat);
        return (x, y, z);
    }

   double CountOfLenght(double lat1,  double lon1, double rad1, double lat2, double  lon2, double rad2){
        double AngleLenth = acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos(lon2-lon1));
        double Lenth = (rad*AngleLenth);
    }



};

int main() {






    return 0;
}