[Numpy-discussion] Math Library

Travis Oliphant oliphant@enthought....
Mon Apr 5 17:43:41 CDT 2010


On Apr 5, 2010, at 12:10 PM, David Cournapeau wrote:

> On Tue, Apr 6, 2010 at 12:56 AM, Charles R Harris
> <charlesr.harris@gmail.com> wrote:
>>
>>>
>>
>> Yeah, but there isn't much low level stuff there and I don't want  
>> to toss a
>> lot of real numerical code into it.
>
> I don't understand: there is already math code there, and you cannot
> be much more low level than what's there (there is already quite a bit
> of bit twiddling for long double). I split the code into complex and
> real, IEEE 754 macros/funcs in another file. I don' think we need to
> split into one file / function, at least not with the current size of
> the library.
>
> I think it is much more worthwhile to think about reorganizing the
> rest of numpy.core C code, the npymath library is very low hanging
> fruit in comparison, if only by size.

I should have some time over the next couple of weeks, and I am very  
interested in refactoring the NumPy code to separate out the Python  
interface layer from the "library" layer as much as possible.   I had  
some discussions with people at PyCon about making it easier for  
Jython, IronPython, and perhaps even other high-level languages to  
utilize NumPy.

Is there a willingness to consider as part of this reorganization  
creating a clear boundary between the NumPy library code and the  
Python-specific interface to it?   What other re-organization thoughts  
are you having David?

-Travis



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