sph_dot

caput.astro.coordinates.spherical.sph_dot(arr1: numpy.typing.ArrayLike[numpy.integer | numpy.floating], arr2: numpy.typing.ArrayLike[numpy.integer | numpy.floating]) → numpy.ndarray[numpy.floating]

Take the scalar product in spherical polar coordinates.

Parameters:

arr1, arr2array_like

Two arrays of vectors in spherical polar coordinates [r, theta, phi], (or alternatively as [theta, phi] with r assumed to be 1). The two arrays should be broadcastable against each other.

Returns:

dotted_vectorsarray_like

An array of the scalar products.