Rounding to the nearest 5
Steven D'Aprano
steven at REMOVE.THIS.cybersource.com.au
Thu Jan 29 22:51:16 EST 2009
On Thu, 29 Jan 2009 18:26:34 -0600, Tim Chase wrote:
>> How can you make python round numbers to the nearest 5:
>>
>> Example:
>>
>> 3 => 0
>> 8 => 10
>> 23.2 => 20
>> 36 => 35
>> 51.5 => 50
>
> I'm not sure *any* rounding system will give those results.
Round towards zero.
> 3 should round up to 5 (not down to 0)
That would be round to nearest.
> result = int(round(x / 5.0) * 5)
I think that should work. It even works for negative values:
>>> int(round(-2.2 / 5.0) * 5)
0
>>> int(round(-2.7 / 5.0) * 5)
-5
--
Steven
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