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Re: Best way to calculate fraction part of x?

References <55100c7a$0$13004$c3e8da3$5496439d@news.astraweb.com> <meqbmo$4rb$1@ger.gmane.org>
Date 2015-03-24 21:39 -0400
Subject Re: Best way to calculate fraction part of x?
From Jason Swails <jason.swails@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.125.1427247586.10327.python-list@python.org> (permalink)

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On Mon, Mar 23, 2015 at 8:38 PM, Emile van Sebille <emile@fenx.com> wrote:

> On 3/23/2015 5:52 AM, Steven D'Aprano wrote:
>
>  Are there any other, possibly better, ways to calculate the fractional
>> part
>> of a number?
>>
>
> float (("%6.3f" % x)[-4:])


​In general you lose a lot of precision this way...​

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Best way to calculate fraction part of x? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-03-23 23:52 +1100
  Re: Best way to calculate fraction part of x? Skip Montanaro <skip.montanaro@gmail.com> - 2015-03-23 08:02 -0500
  Re: Best way to calculate fraction part of x? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-03-23 13:11 +0000
  Re: Best way to calculate fraction part of x? wxjmfauth@gmail.com - 2015-03-23 06:17 -0700
  Re: Best way to calculate fraction part of x? Emile van Sebille <emile@fenx.com> - 2015-03-23 17:38 -0700
  Re: Best way to calculate fraction part of x? Jason Swails <jason.swails@gmail.com> - 2015-03-24 21:39 -0400
  Re: Best way to calculate fraction part of x? Emile van Sebille <emile@fenx.com> - 2015-03-26 13:48 -0700
  Re: Best way to calculate fraction part of x? Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2015-03-26 21:59 +0000
  Re: Best way to calculate fraction part of x? Russell Owen <rowen@uw.edu> - 2015-03-26 15:02 -0700

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