#include <stdio.h>
#include <math.h>
 
int main()
{
 
    double a, b, h,n;
    puts("Input a, b,h ,n"); scanf("%lf%lf%lf%lf", &a, &b, &h, &n);
 
    for(double x = a; x <= b; x += h)
    {
        double xq = x/sqrt(2);
        double Y = exp(xq)*cos(xq);
 
        double cs[8] = { 1, 1/sqrt(2), 0, -1/sqrt(2) };
        double S = 1, t = 1;
        for(int k = 1; k <= n; ++k) S += cs[k%4]*(1 - 2*((k/4)%2))*(t *= x/k);
 
        printf("%.3lf  %15.7lf  %15.7lf\n",x,Y,S);
    }
}
 
 

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