galpy.potential.planarPotential.__call__

planarPotential.__call__(R, phi=0.0, t=0.0, dR=0, dphi=0)[source]

NAME:

__call__

PURPOSE:

evaluate the potential

INPUT:

R - Cylindrica radius (can be Quantity)

phi= azimuth (optional; can be Quantity)

t= time (optional; can be Quantity)

OUTPUT:

Phi(R(,phi,t)))

HISTORY:

2010-07-13 - Written - Bovy (NYU)