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jesterofenglish

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Who knows prolog?

Teach me!
(I was innocently working through the HSC 2003 paper when it pounced)

I kinda get it but what's the deal with the '!', ';', 'nl' and '/'

I'm not a big fan punctuation fan . . .
 

sunny

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Questions in the HSC relating to programming languages can be figured out without actually knowing how to program in the language itself (provided you understand the paradigm enough) since the syllabus does not specify any specific programming language to be taught. Post up the question and see if anyone can figure it out.
 

jesterofenglish

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prolog

sunny said:
Questions in the HSC relating to programming languages can be figured out without actually knowing how to program in the language itself (provided you understand the paradigm enough)
But it helps! I literally spent 10 minutes (maybe 7.3) trying to decipher it, I got most of it but there are holes.

sunny said:
Post up the question and see if anyone can figure it out.
So I'll take ur advice sunny and see if anyone can explain 'nl' and '!' I don't need the answers, I got the std pack, but in a band 6 ans they had the '!' and 'nl'
 

neuro_logik

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You don't need to understand prolog (or any specific language) to decipher a section of code! It should be from your experience with programming and software development!
 

Lazarus

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Prolog is such a fun language!

The 'nl' terminal just prints a newline character.

The '!' operator cuts the algorithm so that it can't recursively backtrack past the point where the operator was used. By default, Prolog will attempt to find all the possible solutions for a specified proposition (and will display them all accordingly). Use of the cut operator will prevent the program from backtracking to find further solutions after it has already found one.
 

JayWalker

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Lazarus said:
Prolog is such a fun language!

The 'nl' terminal just prints a newline character.

The '!' operator cuts the algorithm so that it can't recursively backtrack past the point where the operator was used. By default, Prolog will attempt to find all the possible solutions for a specified proposition (and will display them all accordingly). Use of the cut operator will prevent the program from backtracking to find further solutions after it has already found one.
You'll also want to remember that it is a paradigm (Logial i think) and it defines attributes such as
Hair (Sally, Red)
Tongue (Sally, Pierced)

Totally an example :p
 

Purp|e

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your fucking kidding me ??? lol 7 marks on that ?!?!?!?!?!?! HOW ? we havnt had a question like that in ne of our exams ... that cant be too good for business ...

AHUH ! i guess cus im not doing evo of programing languages :p o0ps
 
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JayWalker

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Well that isnt exactly a hard question,

Part 1 u identify that its prolog by observation, hence is logical paradigm, shown by it calling the knowledge base (init database), and the software assigning attributes to items such as the list...

Part 2 - just add onto it, using their language when they are adding the location to the lists, and go form there,, no need to understand prolog
 

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