cart_to_sph

caput.astro.coordinates.spherical.cart_to_sph(cart_arr: numpy.typing.ArrayLike[numpy.integer | numpy.floating]) → numpy.ndarray[numpy.floating]

Convert a vector of Cartesian coordinates into spherical polar coordinates.

Uses the same convention as sph_to_cart.

Parameters:

cart_arrarray_like

Vector (or array) of cartesian coordinates.

Returns:

polar_vectorarray_like

Array of spherical polars (packed as [[ r1, theta1, phi1], [r2, theta2, phi2], …]