[Tutor] request for sugestions on fragement of code for generating truth-tables
Brian van den Broek
broek at cc.umanitoba.ca
Thu Apr 6 02:51:33 CEST 2006
Orri Ganel said unto the world upon 01/04/06 03:04 PM:
> Brian van den Broek wrote:
<snip>
>> Then, the output is like so:
>>
>> >>> atoms = ["a","b","c"]
>> >>> tvas = tva_dict_maker(atoms)
>> >>> display_tvas(tvas)
>> a:True b:True c:True
>> a:True b:True c:False
>> a:True b:False c:True
>> a:True b:False c:False
>> a:False b:True c:True
>> a:False b:True c:False
>> a:False b:False c:True
>> a:False b:False c:False
>> >>>
<snip>
> What this shouts immediately to me, at least, is binary numbers and
> bool(). Just use your favorite binary conversion recipe, and count down
> from int(len(atoms)*"1",2), converting as you go. And then you take the
> boolean value of each digit of the binary number. If you need help, let
> me know as I've completed a working model.
>
> HTH,
> Orri
Hi Orri,
thanks for the suggestion, and apologies for the delayed response.
I absolutely agree that the problem is connected to binary
representations of integers as you suggest. The problem -- given my
needs -- with your suggested approach is in "use your favo[u*]rite
binary conversion recipe". I want my code to be stand alone and I feel
fairly safe in asserting that if I implemented your suggestion in a
self-contained chunk of code, I'd end up with something more complex
than the code I originally posted. In effect, my original code
exploited the same principle, without actually going through the
binary representation.
I am of course open to the possibility that my suspicion is
ill-grounded ;-)
But, thanks!
Best,
Brian vdB
[*] I'm Canadian, eh! ;-)
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