[R] -1.1 - 0.1 + 1.2 is NOT null! Why?
massimodisasha
massimodisasha at gmail.com
Wed Jul 11 00:23:47 CEST 2012
Il 7/10/12 4:17 PM, ollestrat ha scritto:
> Hello,
>
> I fear its a stupid question,..but here it is:
>
> If I do this simple calculation with the R console, I surprisingly do not
> get a zero. Why?
>
> -1.1-0.1+1.2
> [1] -2.220446e-16
>
>
> greetings, Ole
>
> --
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...
Python :
>>> -1.1-0.1+1.2
-2.220446049250313e-16
>>> -1.2-0.2+1.4
0.0
>>>
R :
> -1.1-0.1+1.2
[1] -2.220446e-16
> -1.2-0.2+1.4
[1] 0
>
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