Best way to calculate fraction part of x?

[Jason Swails]

On Mon, Mar 23, 2015 at 8:38 PM, Emile van Sebille <emile at 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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