On 10/25/10 02:46, Jose Amoreira wrote:
> On Sunday, October 24, 2010 01:18:52 pm Alan Gauld wrote:
>
>> In pseudo code:
>>
>> def coinToss(prob = 0.5):
>> rand = random()
>> if rand >= prob: return True
>> else: return False
>>
>> print "Heads" if coinToss(6/11) else "Tails"
>>
>
> The only problem with this snippet is integer division: 6/11=0, at least in
> Python 2.6, so that the final line will always print "Heads".
>
> But wait! This is pseudo code! Ah, OK. Then 6/11=0.545454..., and Alan was
> right (as usual).
Except for the missing import (which is traditionally omitted in mailing
list discussions when the context makes it clear), Alan's snippet is
correct in Python 3, which defaults to real division.
Though, I'd probably writes it differently:
def coinToss(prob = 0.5):
rand = random()
return rand >= prob
or even:
def coinToss(prob = 0.5):
return random() >= prob
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
