Fixed_PointI_teration_Method

#include <iostream>
#include <cmath>
using namespace std;

double func(double x)
{
  return cos(x);
}

int main()
{
  double x=1,eps = 0.001,p;
  int i=1,N=1000;

  while(true)
  {
    p = func(x);
    if(fabs(p-x) < eps)
    {
      cout<<p<<endl;
      break;
    }
    cout<<"Iteration "<<i<<": p = "<<p<<endl;
    i++;
    x = p;
    cout<<"The solution is "<<p<<endl;
    if(i>N)
    {
      cout<<"Solution not found"<<endl;
      break;
    }
  }
  cout<<"The solution is x = "<<p<<" in the iteration "<<i-1<<endl;

  return 0;
}