20 lines
317 B
Plaintext
20 lines
317 B
Plaintext
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:- object(regular_polygon,
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instantiates(abstract_class),
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specializes(polygon)).
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:- info([
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author is 'Paulo Moura',
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version is 1.0,
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date is 2003/2/3,
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comment is 'Generic regular polygon.']).
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perimeter(Perimeter) :-
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::nsides(Number),
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::side(Side),
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Perimeter is Number*Side.
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:- end_object.
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