import element.*;

public class Quadratic
{
    private static ConsoleWindow c;

    public static void main(String args[])
    {
        final double a = 1.0;
        final double b = -1.0;
        final double c = -1.0;
        
        System.out.println("Roots of "+a+"x^2+"+b+"x+"+c+": ");
        System.out.println((-b+Math.sqrt(b*b-4*a*c))/2*a);
        System.out.println((-b-Math.sqrt(b*b-4*a*c))/2*a);
    }
}
/*
1.618033988749895
-0.6180339887498949
*/