[Numpy-discussion] Infinity definitions
Tue Jul 15 08:33:03 CDT 2008
Following Travis's suggestion below, I would like to suggest that the
following definitions be depreciated or removed in this forthcoming release:
I am not sure about what would be best for numpy.NINF.
Travis E. Oliphant wrote:
> Bruce Southey wrote:
>> Since we are discussing namespace and standardization, I am curious in
>> why there are multiple definitions for defining infinity in numpy when
>> perhaps there should be two (one for positive infinity and one for
>> negative infinity). I really do understand that other people have use of
>> these definitions and that it is easier to leave them in than take them
>> out. Also, it is minor reduction in namespace because I do know that
>> much of the namespace is either defining variables (like different
>> floats and complex numbers) or mathematical functions (like logs and
>> trig functions).
>> Currently we have:
>> Most of these are defined in numeric.py: 'Inf = inf = infty = Infinity =
>> In the f2py/tests subdirectories, the files return_real.py and
>> return_complex.py uses both 'inf','Infinity'.
>> The only occurrence of NINF and PINF are in core/src/umathmodule.c but I
>> don't see any other usage.
>> There does not seem to be any use of 'infty'.
> I think this is a product of bringing together a few definitions into
> one and not forcing a standard.
> should be used except for backward compatibility.
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