Taylor

#include <iostream>
#include <iomanip>
#include <math.h>
using namespace std;
int main()
{
    float xn, xk, dx, e, s, sum, x, F;
    int n=1,nf=1;
    cout<<"Vvedite xn, xk, dx, e: ";
    cin>>xn>>xk>>dx>>e;
    cout<<"------------------------------------------\n";
    cout<<"|     x    |      f     |    n   |   F   |\n";
    cout<<"------------------------------------------\n"<<endl;

    for(x=xn; x<=xk; x+=dx){
        n=0;
        sum=1;
        s=-x;
        sum+=s;
        F=pow(2.71828 ,-1*x);
     while(fabs(s)>e){
         if (n!=0){
            for (int p = 1; p <= n; p++) {
            	nf *= p;
            }
         }else nf=1;
        s*=(pow(-1,n)*pow(x,n))/nf;
        sum+=s;
        n++;
    }
    nf=0;
    printf("%10.2f | %8.2f   |  %3d  |   %8.2f | \n",x,sum,n,F);
    }
    cout<<"------------------------------------------\n";
    return 0;
}