Product of an empty sequence

Ivan Vilata i Balaguer ivilata at carabos.com
Thu Oct 19 10:39:15 CDT 2006


En/na Travis Oliphant ha escrit::

> Ivan Vilata i Balaguer wrote:
>> Wouldn't be 0.0 a more natural answer?  I understand that 1 is neutral
>> on product operations, but I still can't see why 1.0 is a better answer.
> 
> It's the identity for the multiplication ufunc.  

OK, I guess that means it's something like an implicit ``initializer``
(as pointed by Alan) to ufunc reductions.  Thanks!  ::

>> (BTW, the definitions of ``prod()`` and ``product()`` are still
>> identical as noted by Sebastian Haase some time ago.)
>>   
> Is this a problem?

No, but it also caught my eye. :)

::

	Ivan Vilata i Balaguer   >qo<   http://www.carabos.com/
	       Cárabos Coop. V.  V  V   Enjoy Data
	                          ""

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