42aabce1bb
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1973 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
45 lines
638 B
Plaintext
45 lines
638 B
Plaintext
================================================================
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Logtalk - Open source object-oriented logic programming language
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Release 2.30.7
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Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved.
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================================================================
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% start by loading the example:
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| ?- logtalk_load(shapes_ph(loader)).
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...
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% try some simple queries:
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| ?- square::nsides(N).
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N = 4
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yes
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| ?- square::area(A).
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A = 1
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yes
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| ?- q1::(color(Color), side(Side), position(X, Y)).
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Color = red
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Side = 1
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X = 0
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Y = 0
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yes
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| ?- q2::(side(Side), area(Area), perimeter(Perimeter)).
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Side = 3
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Area = 9
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Perimeter = 12
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yes
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