#include <iostream>
using namespace std;

int main ()
{
    double R, X=1, Y, A=1, D, H;
    
    cout << endl;
    cout << "Heron-Verfahren" << endl << endl;
    cout << "Gib den Radikanten ein!" << endl;
    cin >> R;
    Y=R;
    H=X-Y;
    if (H>=0)
       D=H;
    if (H<0)
       D=-H; 
    while ( D>0,000000005 )
    {
          X=1.0/2*(X+(R/X));
          Y=R/X;
          A=A+1;
          H=X-Y;
          if (H>=0)
             D=H;
          if (H<0)
             D=-H;
          printf ("%.10f | %.10f", X, Y);
          cout << endl;
          system("Pause");
    }
    cout << "Im " << A << ". Schritt habe ich herausgefunden, dass die Wurzel von " << R << " " << X << " ist." << endl;
    
    system("Pause");
    return 0;
}