[Numpy-discussion] `out` argument to ufuncs

[Stéfan van der Walt]

Hey all,

Gael just asked me why `add`, `subtract` etc. didn't have out
arguments like `cos` and `sin`.  I couldn't give him a good answer.

Could we come to an agreement to add a uniform interface to ufuncs for
1.3?  Either all or none of them should support the out argument.

I see a couple of "deg" (for degrees) flags floating around as well,
so we could consider adding those to all ufuncs that accept angles.

Thanks for your input,
Stéfan