[Haskell-cafe] 0/0 > 1 == False

Cristian Baboi cristi at ot.onrc.ro
Fri Jan 11 01:58:35 EST 2008


On Fri, 11 Jan 2008 08:34:10 +0200, Don Stewart <dons at galois.com> wrote:

>> NaN is not 'undefined'
>>
>> (0/0) /= (0/0) is True
>> (0/0) == (0/0) is False
>>
>> You can use these to test for NaN.

> You can also use isNaN :)
>
>     Prelude> isNaN (1/0)
>     False
>     Prelude> isNaN (0/0)
>     True

Not true in Hugs.




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