[Tutor] Beginner - explaining 'Flip a coin' bug

[David Hutto]

On Fri, Feb 14, 2014 at 10:49 PM, David Hutto <dwightdhutto at gmail.com>wrote:

> Here is a problem I've come across, from empirical evidence, that also
> relates to your equation. We always assume
>  that their are always two probabilities, that a coin can be either head
> or tails.
>
> However, there are dynamics within a third realm of the dimensionality of
> the coin...it's not a two dimensional plane. So the planar probabilities in
> relation to the 'surface are' *surface area hold another possibility...the
> 'edge'.
>
> The algorithm of applying the edge are up to you, but I've seen the coin
> land on it's curved edge more than once, so this function you've designed,
> should have more than two possibilities, within a complete algorithm to the
> real world functionality of the coin in question.
>
>
> On Wed, Feb 12, 2014 at 10:25 AM, Marc Eymard <marc_eymard at hotmail.com>wrote:
>
>> Hello there,
>>
>> I want to emulate a coin flip and count how many heads and tails when
>> flipping it a hundred times.
>>
>> I first coded *coinflip_WRONG.py* with "count_flips += 1" statement
>> within the *if/else* block.
>> When running it, either returned values are wrong or the script seems to
>> enter in an infinite loop showing no return values at all.
>>
>> *coinflip.py* is a corrected version I worked out myself. I moved
>> "count_flips+= 1" out of *if/else* block and inserted it before* if/else*
>> .
>>
>> However, I still don't understand the bug since, in my understanding,
>> both files are incrementing variable *count_flips* each time until the
>> loop becomes false.
>>
>> Can somebody explain the reason of the bug.
>> Cheers,
>>
>> Marc
>>
>> _______________________________________________
>> Tutor maillist  -  Tutor at python.org
>> To unsubscribe or change subscription options:
>> https://mail.python.org/mailman/listinfo/tutor
>>
>>
>
>
> --
> Best Regards,
> David Hutto
> *CEO:* *http://www.hitwebdevelopment.com
> <http://www.hitwebdevelopment.com>*
>



-- 
Best Regards,
David Hutto
*CEO:* *http://www.hitwebdevelopment.com <http://www.hitwebdevelopment.com>*
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/tutor/attachments/20140214/4e5a154a/attachment.html>