round(22.47,2) gives 22.469999999999999?

Bernhard Herzog bh at intevation.de
Thu Aug 7 13:34:47 CEST 2003


sjmachin at lexicon.net (John Machin) writes:

>> Wouldn't
>> 
>> int(22.47 + .5)
>> 
>> get you to where you want to go?
>
> Sure would, if 22 was where you wanted to go.

Even if he would want to round to an int, using int(x + 0.5) would fail
for negative values:

>>> int(-1.9 + 0.5)
-1

but

>>> round(-1.9)
-2.0


   Bernhard

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