galpy.util.bovy_coords.Rz_to_coshucosv
galpy.util.bovy_coords.sphergal_to_rectgal
galpy.util.bovy_coords.
Rz_to_uv
NAME:
PURPOSE:
calculate prolate confocal u and v coordinates from R,z, and delta
INPUT:
R - radius z - height delta= focus
R - radius
z - height
delta= focus
OUTPUT:
(u,v)
HISTORY:
2012-11-27 - Written - Bovy (IAS)