Dev - C++ - Elaborar un programa que imprima el seno ,coseno y arco tangente de x

#include <iostream>

#include <iomanip>

#include <cmath>

using namespace std;

int main()

{

    cout << setprecision(2) << fixed;

    cout << "\nValor      Seno      Coseno     Arcotangente"

         << "\n============================================";

    for( float x = -1.00; x < -0.01; x += 0.2 ) {

        cout << "\n" << setw(6) << x

             << "    " << setw(6) << sin(x)

             << "    " << setw(6) << cos(x)

             << "    " << setw(6) << atan(x);

    }

    for( float x = 0.00; x < 1.2; x += 0.2 ) {

        cout << "\n" << setw(6) << x

             << "    " << setw(6) << sin(x)

             << "    " << setw(6) << cos(x)

             << "    " << setw(6) << atan(x);

    }

    cout << endl;

    return 0;

}