сумма 4 - 5

#include<math.h>
#include<iomanip>
#include<iostream>
using namespace std;


float func(float e, float x , int &n)
{
float s = 0.0, a = 1.0, singl=1.0;
n = 0;
while (fabs(a) >= e)
{
s += a;
a = singl*pow(x,n) / ((n + 1.0) * (n + 4.0));
cout<<"a="<<a<<endl;
singl=-singl;
n++;
}
return s;
}

int main()

{
float a, b, e, h, x;
cin >> a >> b >> h >> e;
int n, i;
x = a;
cout << func(x, e, n)<< endl;
while (x = a, i = 1, x <= b, x += h, i++)

cout << fixed<< i<< " "<< x << " " << setprecision(10) << func(x, e, n) << " "<< n << " " << endl;

system("pause");
return 0;
}