static void Main(string[] args)
        {
            NamespaceClass c   = new NamespaceClass();
            double         res = c.Add(2.3, 3.6);

            Console.WriteLine(res);
        }
    //******************************************************
    //******************************************************
    //**	NAMESPACING
    //******************************************************
    //******************************************************

    ///<summary>
    ///	DEMO
    //
    //	REFERENCE: URL (http://msdn.microsoft.com/en-us/library/0d941h9d.aspx);
    ///</summary>
    private void _doDemoOfNamespacing()
    {
        // SIMPLY TO ORGANIZE YOUR CODE AND PREVENT CLASS NAME COLLISIONS YOU
        //		CAN **OPTIONALLY** PUT 'namespace blah' atop a class declaration and then 'using blah;'
        //		atop the class which wants to use blah
        NamespaceClass namespaceClass = new NamespaceClass();

        Debug.Log("namespaceClass: " + namespaceClass);
    }