On Thu, 19 Oct 2006, Ivan Vilata i Balaguer apparently wrote:=20
>>>> numpy.prod(())=20
> 1.0
> Wouldn't be 0.0 a more natural answer?
I think it must be 1 or a TypeError. E.g.,
http://docs.python.org/lib/built-in-funcs.html#reduce
reduce(function, sequence[, initializer])
Apply function of two arguments cumulatively to the=20
items of sequence, from left to right, so as to reduce=20
the sequence to a single value. For example,=20
reduce(lambda x, y: x+y, [1, 2, 3, 4, 5]) calculates=20
((((1+2)+3)+4)+5). The left argument, x, is the=20
accumulated value and the right argument, y, is the=20
update value from the sequence. If the optional=20
initializer is present, it is placed before the items of=20
the sequence in the calculation, and serves as a default=20
when the sequence is empty. If initializer is not given=20
and sequence contains only one item, the first item is=20
returned.
hth,
Alan Isaac
(just a user)
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