[Numpy-discussion] Internal Math Library of Numpy

[Pauli Virtanen]

On 2009-07-30, Nanime Puloski <npuloski at gmail.com> wrote:
> Does Numpy use Python's standard math library when calculating
> elementary functions such as exp(x) and acos(x)?

No.

> Also, what is the internal library of Numpy and Python's 
> standard math library?

The standard C library, plus custom implementations for functions 
that are missing in it.

> Are they platform independent?

In practice, yes. There are some possible obscure corner cases 
currently in complex-valued inf/nan handling, though.

-- 
Pauli Virtanen