There's a sci.math faq answer about this.  They note that the value of 0^0
is technically indeterminate, but then give a long list of reasons why
0^0=1 is a good choice.  It's interesting.

http://www.lib.ox.ac.uk/internet/news/faq/archive/sci-math-faq.0to0.html

--Steve

>The last line in the original message is of interest in the discussion of
>Float>>raisedTo:.  Saying that 0 raisedTo: 0 is equal to one is reasonable,
>given that *anything* raised to the zero power is 1.  Are there any
>arguments for other results (e.g. 0 raisedTo: 0 = 0, or is undefined)?
>
>Bob Jarvis
>The Timken Company
>
>> -----Original Message-----
>> From:	Michael S. Klein [SMTP:mklein at alumni.caltech.edu]
>> Sent:	Monday, February 22, 1999 12:52 PM
>> To:	squeak at cs.uiuc.edu
>> Subject:	RE: RE: RE: [BUGLET] in Float>raisedTo:
>>
>	<snip>
>>      (expt 0 0) is defined to be equal to 1.



--
Stephen C. Gilardi
SQ Software