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From: Kish Shen <kisshen_at_...5...>

Date: Thu, 20 Nov 2014 09:35:04 +0000

Date: Thu, 20 Nov 2014 09:35:04 +0000

On 20/11/2014 08:36, Choughule, Yogesh wrote: > Find below my code and results.. Please suggest a solution because the results returned by locate are incorrect. > > :- lib(ic). > solve_hr :- > X :: 10..35, > Y :: 10..20, > X+Y $> 20.3. > > Execute by following command:: > solve_hr,locate([X,Y],0.01) > > Answer(Incorrect):: > ?- solve_hr, locate([X, Y], 0.01). > X = X{0.0 .. 0.0054228417426558225} > Y = Y{0.0 .. 0.0054228417426558225} > There is 1 delayed goal. > Yes (0.00s cpu, solution 1, maybe more) > I assume you think the answer is incorrect because > X = X{0.0 .. 0.0054228417426558225} > Y = Y{0.0 .. 0.0054228417426558225} does not satisfy your model in solve_hr? The reason is the X and Y here, i.e. X and Y in locate([X.Y], 0.01) are *different* variables from the X and Y in solve_hr. To make them the same variable, you need to pass them out of solve_hr, e.g. solve_hr(X, Y) :- X :: 10..35, Y :: 10..20, X+Y $> 20.3. and call your query as ?- solve_hr(X,Y), locate([X, Y], 0.01). Cheers, KishReceived on Thu Nov 20 2014 - 10:09:08 CET

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