E.cpp

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

float factorial(double a){
  float con, acum=1.0;
  for(con=2.0; con<=a; con++){
    acum=acum*con;
  }
  return acum;
}

float calculate_e(int p){
  float e=0.0, ant, v;
  for (float n=0.0; n<=p; n++){

    ant=e;

    e= e + (1.0/factorial(n));

    cout<<e<< endl;
    cout <<endl;

    if (ant == e){
      break;
    }
   }
   v *= pow(10, p);
   v = floor(v);
   v /= pow(10, p);
      return e;
  }


int main () {

  int p;

  cout<<"Dame la precison de e "; cin >> p;

  cout<<calculate_e(p);


  return 0;
}