Вычислить и вывести на экран в виде таблицы значения функции

#include<stdio.h>

int main()
{
    //declaration of variables

    int i=0;//iteration counter
    int xn=0, xk=2;
    long double x;//current value of x
    long double eps;//absolute accuracy
    double dx;//step of iteration (dx_minimum=0.2)
    long double summa=0;
    long double s1=0, s2=0;//s1-preceding term of series 
                           //s2-current term of series

    printf("Input step of iteration dx=");
    scanf("%lf",&dx);
    printf("Input absolute accuracy eps=");
    scanf("%lf",&eps);
    printf("\n--------------------------------------------------------------------------\n");
    printf("|  current value of x  |  current value of summa  |   iteration counter  |\n");
    printf("--------------------------------------------------------------------------\n");

    for(x=dx;x<=xk;x+=dx)
    {
        for(i=1, s1=(x-1), summa=s1; s1 > eps || s1 < -eps ; ++i)//
        {
            if(i%2==0)
            {
                summa+=s2;
                s2=s1*(x-1)/(i+1);
                s1=s2;
                
            }
            else
            {
                summa-=s2;
                s2=s1*(x-1)/(i+1);
                s1=s2;
                
            }
        }
        printf("|       %f       |         %09f        |           %2.0d         |\n",x,summa,i);

    }
    printf("--------------------------------------------------------------------------\n");

    return 0;
}