galpy.util.coords.spher_to_cyl

galpy.util.coords.spher_to_cyl(r, theta, phi)[source]

NAME:

spher_to_cyl

PURPOSE:

convert from spherical to cylindrical coordinates

INPUT:

r, theta, phi - spherical coordinates

OUTPUT:

R, z, phi - spherical coordinates

HISTORY:

2016-05-20 - Written - Aladdin