Dev - C++ - valores de f(x)

#include <iostream>

#include <cmath>

using namespace std;

float f(float x);

int main()

{

    for (int i = -10; i <= 10; i+= 2)

        cout << f(i) << " ";

    cout << endl;

    return 0;

}

float f(float x)

{

    return 0.25 * pow(x, 2) - 3;

}