[Numpy-discussion] 0/0 == 0?

Charles R Harris charlesr.harris at gmail.com
Thu Oct 2 22:20:41 EDT 2014


On Thu, Oct 2, 2014 at 7:06 PM, Benjamin Root <ben.root at ou.edu> wrote:

> Out[1] has an integer divided by an integer, and you can't represent nan
> as an integer. Perhaps something weird was happening with type promotion
> between versions?
>

Also note that in python3 the '/' operator does float rather than integer
division.

>>> np.array(0) / np.array(0)
__main__:1: RuntimeWarning: invalid value encountered in true_divide
nan

<snip>

Chuck
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