Pierre Denis added the comment:
> So this justifies things like `sqrt(-0.0)` giving a zero result (rather than
> being considered invalid)
Well, I didn’t noticed that the wolf was already in the henhouse! This choice
seems disputable for me because it is precisely a case where f(-0.0)
Pierre Denis added the comment:
Thanks, Tim & Mark. This indeed clarifies and gives a good rationale on Python
implementation. Nevertheless, despite the authority arguments, I continue to
wonder what is the rationale for these specifications. Probably the debate
should move to the stand
New submission from Pierre Denis :
Python returns inconsistent results when negative infinity is raised to a
non-integer power. This happens with the ** operator as well as with the pow
and math.pow functions. The most blatant symptom occurs with power 0.5, which
is expectedly equivalent to a
