Precompute Functions#

Spherical harmonic transforms.#
Function Name	Description
`inverse()`	Wrapper function around NumPy/JAX/Torch inverse methods
`inverse_transform()`	Inverse spherical harmonic transform (NumPy)
`inverse_transform_jax()`	Inverse spherical harmonic transform (JAX)
`inverse_transform_torch()`	Inverse spherical harmonic transform (Torch)
`forward()`	Wrapper function around NumPy/JAX/Torch forward methods
`forward_transform()`	Forward spherical harmonic transform (NumPy)
`forward_transform_jax()`	Forward spherical harmonic transform (JAX)
`forward_transform_torch()`	Forward spherical harmonic transform (Torch)

Wigner transforms.#
Function Name	Description
`inverse()`	Wrapper function around NumPy/JAX/Torch inverse methods
`inverse_transform()`	Inverse Wigner transform (NumPy)
`inverse_transform_jax()`	Inverse Wigner transform (JAX)
`inverse_transform_torch()`	Inverse Wigner transform (Torch)
`forward()`	Wrapper function around NumPy/JAX/Torch forward methods
`forward_transform()`	Forward Wigner transform (NumPy)
`forward_transform_jax()`	Forward Wigner transform (JAX)
`forward_transform_torch()`	Forward Wigner transform (Torch)

Constructing Kernels for precompute transforms.#
Function Name	Description
`spin_spherical_kernel()`	Builds a kernel including quadrature weights and Wigner-D coefficients for spherical harmonic transform.
`wigner_kernel()`	Builds a kernel including quadrature weights and Wigner-D coefficients for Wigner transform.
`healpix_phase_shifts()`	Builds a vector of corresponding phase shifts for each HEALPix latitudinal ring.