[Numpy-discussion] New ufuncs
Charles R Harris
Mon Nov 10 13:52:27 CST 2008
On Sun, Nov 9, 2008 at 11:29 PM, T J <firstname.lastname@example.org> wrote:
> On Thu, Nov 6, 2008 at 3:01 PM, T J <email@example.com> wrote:
> > On Thu, Nov 6, 2008 at 2:36 PM, Charles R Harris
> > <firstname.lastname@example.org> wrote:
> >> I could add exp2, log2, and logaddexp2 pretty easily. Almost too easily,
> >> don't want to clutter up numpy with a lot of functions. However, if
> there is
> >> a community for these functions I will put them in.
> > I worry about clutter as well. Note that scipy provides log2 and exp2
> > already (scipy.special). So I think only logaddexp2 would be needed
> > and (eventually) logdotexp2. Maybe scipy.special is a better place
> > than in numpy? Then perhaps the clutter could be avoided....though
> > I'm probably not the best one to ask for advice on this. I will
> > definitely use the functions and I suspect many others will as
> > well---where ever they are placed.
> Since no one commented further on this, can we go ahead and add
> logaddexp2? Once in svn, we can always deal with 'location' later---I
> just don't want it to get forgotten.
The functions exp2 and log2 are part of the C99 standard, so I'll add those
two along with log21p,
exp21m, and logaddexp2. The names log21p and exp21p look a bit creepy so I'm
open to suggestions.
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