c++

#include <iostream>
#include <cmath>
using namespace std;

double f(double x) //function f(x)
{
    return -2.4*pow(x,2) + 5*x - 3;
}

int main()
{
    double a=-2, b=2, h=0.5, x; //variables

    cout << "x\tf(x)" << endl; //header of table

    for (x=a; x<=b; x+=h)   //cycle
        cout << x << "\t" << f(x) << endl;

    getchar(); //pause before closing programm
    return 0;
}