130 lines
3.0 KiB
Perl
130 lines
3.0 KiB
Perl
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% clp(q,r) version 1.3.3 %
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% %
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% (c) Copyright 1992,1993,1994,1995 %
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% Austrian Research Institute for Artificial Intelligence (OFAI) %
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% Schottengasse 3 %
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% A-1010 Vienna, Austria %
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% %
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% File: arith_q.pl %
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% Author: Christian Holzbaur christian@ai.univie.ac.at %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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:- module( arith_q,
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[
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arith_eps/1,
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arith_normalize/2,
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integerp/1,
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integerp/2,
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% Q specifics
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acosq/4,
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addq/6,
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asinq/4,
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atanq/4,
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ceilingq/4,
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comq/5,
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cosq/4,
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divq/6,
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divq_11/4,
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'divq_-11'/4,
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expq/4,
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expq/6,
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floorq/4,
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getq/3,
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logq/4,
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maxq/6,
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minq/6,
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mulq/6,
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putq/3,
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rat_float/3,
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roundq/4,
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signumq/4,
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sinq/4,
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subq/6,
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tanq/4,
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truncateq/4
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]).
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%
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% Modules receiving Q expansion
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%
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arith_module( clpq).
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arith_module( nfq).
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:- multifile
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user:goal_expansion/3.
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:- dynamic
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user:goal_expansion/3.
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:- discontiguous
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user:goal_expansion/3.
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%
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user:goal_expansion( putq(D,N,Res), Module, (Res = rat(N,D))) :- arith_module( Module).
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user:goal_expansion( arith_eval(Term,Res), Module, Expansion) :-
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arith_module( Module),
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compile_Qn( Term, Res, Code),
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l2conj( Code, Expansion).
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user:goal_expansion(arith_eval(Rel), Module, Expansion) :-
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arith_module( Module),
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compile_Qn( Rel, boolean, Code),
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l2conj( Code, Expansion).
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user:goal_expansion(case_signum(Term,Lt,Z,Gt), Module, Expansion) :-
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arith_module( Module),
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compile_case_signum_Qn( Term, Lt,Z,Gt, Code),
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l2conj( Code, Expansion).
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:- use_module( arith).
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arith_eps( 0). % for Monash #zero expansion
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arith_normalize( Const, Norm) :-
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getq( Const, N, D),
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putq( D, N, Norm).
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integerp( rat(_,1)).
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integerp( rat(I,1), I).
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%---------------------------------------------------------------------------
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user:goal_expansion(comq(Na,Da,Nb,_,S), arith_q, 0<Nb) :-
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Na==0, Da==1, S==(<).
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user:goal_expansion(comq(Na,_,Nb,Db,S), arith_q, Na<0) :-
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Nb==0, Db==1, S==(<).
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user:goal_expansion(divq(Na,Da,Nb,Db,Nc,Dc), arith_q, Exp) :-
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( Na==1,Da==1
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-> Exp = divq_11(Nb,Db,Nc,Dc)
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; Na==(-1),Da==1
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-> Exp = 'divq_-11'(Nb,Db,Nc,Dc)
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).
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/*
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1 addq(0, 1, 1, 1, _, _).
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10 comq(0, 1, _, _, <).
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1 comq(0, 1, _, _, _).
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16 comq(_, _, 0, 1, <).
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2 comq(_, _, 0, 1, _).
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1 comq(_, _, 1, 1000, <).
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6 comq(_, _, _, _, <).
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7 divq(-1, 1, _, _, _, _).
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1 divq(0, 1, 1, 1, _, _).
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1 divq(1, 1, 1000, 1, _, _).
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4 divq(1, 1, _, _, _, _).
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2 getq(_, -1, 1).
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13 getq(_, 0, 1).
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6 getq(_, 1, 1).
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1 mulq(0, 1, 1000, 1, _, _).
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1 putq(1, 0, _).
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1 putq(1, 1, _).
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1 putq(1000, 1, _).
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*/
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