[issue34645] math and numpy yield different results (nan)
Steven D'Aprano
report at bugs.python.org
Wed Sep 12 14:19:04 EDT 2018
Steven D'Aprano <steve+python at pearwood.info> added the comment:
> Well, the thing is that i pass two (apparent) identical values into the same function,
Even if they have the same *numeric* value, they aren't the same kind of
value, and they aren't the same function.
One is <type 'numpy.float64'> and the other is <class 'float'>. When you
call ** (exponentiation), that calls two different methods. One raises
a warning and returns NAN, the other converts to complex.
This has nothing to do with linspace. See my simplifed example code
which doesn't use it.
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