22 lines
277 B
Plaintext
22 lines
277 B
Plaintext
|
:- object(square,
|
||
|
|
instantiates(class),
|
||
|
|
specializes(regular_polygon)).
|
||
|
|
|
||
|
|
|
||
|
|
:- info([
|
||
|
|
author is 'Paulo Moura',
|
||
|
|
version is 1.0,
|
||
|
|
date is 2003/2/3,
|
||
|
|
comment is 'Geometric square.']).
|
||
|
|
|
||
|
|
|
||
|
|
nsides(4).
|
||
|
|
|
||
|
|
|
||
|
|
area(Area) :-
|
||
|
|
::side(Side),
|
||
|
|
Area is Side*Side.
|
||
|
|
|
||
|
|
|
||
|
|
:- end_object.
|