[SciPy-Dev] Real spherical harmonics

[Chuck Witt]

Dear SciPy Devs,

I am thinking of contributing a real spherical harmonic function
(scipy.special.real_sph_harm) to complement the existing spherical harmonic
routine (scipy.special.sph_harm).

The real spherical harmonics span the same space as traditional spherical
harmonics but can be more useful in some cases, particularly when the
function to be expanded is purely real. They are simple to compute from the
traditional spherical harmonics:

https://en.wikipedia.org/wiki/Spherical_harmonics#Real_form.

Would this contribution be of interest?

Thanks for all the work you do.

Best wishes,
Chuck
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