/*
Задание 1.
*/

#include <iomanip>
#include <iostream>
#include <functional>

using namespace std;

int main() {
    double x_first;
    double x_last;
    double dx;
    double a;
    double b;
    double c;
    cin >> x_first >> x_last >> dx >> a >> b >> c;

    double result = 0;
    bool is_ok = true;

    auto function1 = [&a, &b, &c, &result, &is_ok](const double& x) {
        if (b < 0) {
            cout << "Cant get sqrt froom negative number\n";
            is_ok = false;
            return;
        }
        result = -1 * (a * x * x) - sqrt(b);
    };

    auto function2 = [&a, &b, &c, &result, &is_ok](const double& x) {
        if (c == 0 || x == 0) {
            cout << "Cant devide by 0\n";
            is_ok = false;
            return;
        }
        result = (x - a) / (c * x);
    };

    auto function3 = [&a, &b, &c, &result, &is_ok](const double& x) {
        if (b == 0) {
            cout << "Cant divide by 0\n";
            is_ok = false;
            return;
        }
        result = -1 * x / b;
    };


    vector<function<void(double)>> functions = { function1, function2, function3 };

    size_t foo_idx = 2;
    if (c < 0 && a) {
        foo_idx = 0;
    }
    if (c > 5 && !a) {
        foo_idx = 1;
    }

    auto foo = functions[foo_idx];
    const int PRECISION = 15;

    size_t iterations_count = (x_last - x_first) / dx + 1;
    for (size_t i = 0; i < iterations_count; ++i) {
        result = 0;
        is_ok = true;
        foo(x_first + i * dx);
        if (is_ok) {
            cout << fixed << setprecision(PRECISION) << result << endl;
        }
    }

    return 0;
}