/**
 * @author  John Paxton
 * @version 1.0
 */

public class Javadoc
{

/**
 * Calculates the two roots of a quadratic equation, denoted by
 * ax^2 + bx + c = 0 and then determines the larger one.
 * 
 * @param a the coefficient of the x^2 term
 * @param b the coefficient of the x term
 * @param c the coefficient of the constant term
 * 
 * @return  the larger of the two quadratic roots
 * @throws  Exception   if either the discriminant is negative or a is 0
 */
    public double largerRoot (double a, double b, double c) throws Exception
    {
        double discriminant;
        double root1;
        double root2;
        
        discriminant = Math.sqrt ( b * b - 4 * a * c );
        
        if ((discriminant < 0) || (a == 0))
        {
            throw (new Exception("Math Error"));
        }
        
        root1 = (-b + discriminant) / (2 * a);
        root2 = (-b - discriminant) / (2 * a);
        
        return Math.max(root1, root2);
    }   

}