123

long double f_xmax(double x);
long double f_sum(double x);

int main()
{
    double x = -2, h = 0.4;
    int n = (2+2)/h+1;
    double array[2][n];
    for (int i = 0; i < n; i++)
    {
        array[0][i] = x;
        if (x > 0)
        {
            array[1][i] = f_xmax(x);
        }
        else
        {
            array[1][i] = f_sum(x);
        }
        x += h;
    }
    for (int i = 0; i < 2; i++)
    {
        for (int j = 0; j < n; j++)
        {
            cout << array[i][j] << "\t";
        }
        cout << endl;
    }
}

long double f_xmax(double x)
{
    double tempSum = pow(x,3)/1/5;
    return tempSum;
}

long double f_sum(double x)
{
    double tempSum = 0;
    int k = 1;
    for (int i = 0; i < 3; i++)
    {
        tempSum += pow(x,2) + pow(x,k)/k;
        k++;
    }
    return tempSum;
}