The SpinWeightedSpheroidalHarmonics package provides functions for computing spin-weighted spheroidal harmonics, spin-weighted spherical harmonics and their associated eigenvalues. Support is included for both arbitrary-precision numerical evaluation, and for series expansions.

Spin-weighted Spheroidal Harmonics

SpinWeightedSpheroidalEigenvalue — evaluate a spin-weighted spheroidal eigenvalue.

SpinWeightedSpheroidalHarmonicS — evaluate a spin-weighted spheroidal harmonic.

SpinWeightedSpheroidalHarmonicSFunction — function generated by SpinWeightedSpheroidalHarmonicS.

Spin-weighted spherical harmonics

SpinWeightedSphericalHarmonicY — evaluate a spin-weighted spherical harmonic.