Mark Dickinson added the comment:

> Is math.exp(x) always more accurate than math.e ** x?

As Serhiy says: not always, and in general the answer is going to depend on the 
relative quality of the libm implementations of pow and exp. But on typical 
machines, it is going to be true that `math.exp(x)` is a better (faster, more 
accurate) way of computing the exponential function than `math.e ** x`. 
(Similarly, `math.sqrt(x)` should be preferred over `x ** 0.5`.) I'm not sure 
whether it's worth encoding such recommendations in the documentation or not.

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue29956>
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