=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.29.4

Copyright (c) 1998-2007 Paulo Moura.  All Rights Reserved.
=================================================================


To load this example and for sample queries, please see the SCRIPT file.

This folder contains an example of using parametric objects to implement
symbolic expression differentiation and simplification.

Current limitations:

	- the expression that we intend to differentiate or simplify 
	must be a compound term. Accepted functors are *, +, -, **, and log.

	- use as a variable the atom x.

	- only integers can be used as constants.

This example is still incomplete. For example, using sum distribution 
property to simplify expressions is not yet implemented.