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Re: please i need explanation

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  Re: please i need explanation Steve Simmons <square.steve@gmail.com> - 2013-01-11 19:38 +0000

#36640 — Re: please i need explanation

I read the question as "I've got this function and it does what I expect 
but I don't understand the code".
On that basis...

The function creates a factorialfor the input number 'n' (i.e. 
1*2*3*4.....*n)

The first 2 lines checks to see that the input is less than 2 and, if 
so, returns a value of 1
The rest of the code counts down from n to 1 multiplying f by n at each 
iteration.

If I guessed the right question, reply to the post for further 
clarification.

Steve

On 11/01/2013 16:33, kwakukwatiah@gmail.com wrote:
>
>
> -----Original Message----- From: K. Elo
> Sent: Friday, January 11, 2013 3:56 AM
> To: python-list@python.org
> Subject: Re: please i need explanation
>
> Hi!
>
> Since there is no stated question, I need to guess:
>
> n -= 1 (instead of "f -= 1")
>
> should work.
>
> Or maybe the question was a totally different one...
>
> -Kimmo
>
> 11.01.2013 17:35, kwakukwatiah@gmail.com wrote:
>> def factorial(n):
>>      if n<2:
>>               return 1
>>      f = 1
>>      while n>= 2:
>>          f *= n
>>          f -= 1
>>      return f
>>
>>
>>
> please it works.but don’t get why the return 1 and the code below.
>

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