Newton_raphson

#include<bits/stdc++.h>
#define eps .001
using namespace std;

int main()
{
    double a,b,c,x0,x;
    double r=1;
    cout <<"Enter the value of a,b,c : ";
    cin >> a >>b >>c;

    if(a>0)
    {
        cout <<"Enter the value of x0(initial guess) :";
        cin >> x0;
        x=x0;
        while(1)
        {
            double fx = a*x*x +b*x +c;
            double fpx = 2*a*x +b;
            x = x-(fx/fpx);
            cout <<"iteration "<<r++<<" root is : "<<x<<endl;
            //break;
        }

        cout<<"The Root is : " <<x<<endl;
    }
    return 0;
}