acoustotreams.ssw.translate

acoustotreams.ssw.translate(lambda_, mu, l, m, kr, theta, phi, singular=True)[source]

Translation coefficients for spherical waves.

Returns the correct translation coefficients from acoustotreams.ssw.tl_ssw() and acoustotreams.ssw.tl_ssw_r() or combinations thereof for the specified modes and basis.

Parameters:

  • lambda (int or array_like) – Degree of output modes.

  • mu (int or array_like) – Order of output modes.

  • l (int or array_like) – Degree of input modes.

  • m (int or array_like) – Order of input modes.

  • kr (float or complex or array_like) – Translation distance in units of the wavenumber.

  • theta (float or array_like) – Polar angle (rad).

  • phi (float or array_like) – Azimuthal angle (rad).

  • singular (bool, optional) – If True, singular translation coefficients are used, else regular coefficients. Defaults to True.

Returns:

complex or array_like