:- protocol(symdiffp).
:- info([
author is 'Paulo Moura',
version is 1.0,
date is 1999/12/29,
comment is 'Symbolic differentiation and simplification protocol.',
source is 'Example based on the Clocksin and Mellish Prolog book.']).
:- public(diff/1).
:- mode(diff(-expression), one).
:- info(diff/1, [
comment is 'Returns the symbolic differentiation of self.',
argnames is ['Expression']]).
:- public(simplify/1).
:- mode(simplify(-expression), one).
:- info(simplify/1, [
comment is 'Returns the symbolic simplification of self.',
:- end_protocol.
