galpy.potential.evaluaterforces¶
- galpy.potential.evaluaterforces(Pot, R, z, phi=None, t=0.0, v=None)[source]¶
NAME:
evaluaterforces
PURPOSE:
convenience function to evaluate a possible sum of potentials
INPUT:
Pot - a potential or list of potentials
R - cylindrical Galactocentric distance (can be Quantity)
z - distance above the plane (can be Quantity)
phi - azimuth (optional; can be Quantity)
t - time (optional; can be Quantity)
v - current velocity in cylindrical coordinates (optional, but required when including dissipative forces; can be a Quantity)
OUTPUT:
F_r(R,z,phi,t)
HISTORY:
2016-06-10 - Written - Bovy (UofT)