galpy.potential.Potential.Rzderiv¶
-
Potential.
Rzderiv
(R, Z, phi=0.0, t=0.0)[source]¶ NAME:
RzderivPURPOSE:
evaluate the mixed R,z derivativeINPUT:
R - Galactocentric radius (can be Quantity)
Z - vertical height (can be Quantity)
phi - Galactocentric azimuth (can be Quantity)
t - time (can be Quantity)
OUTPUT:
d2phi/dz/dRHISTORY:
2013-08-26 - Written - Bovy (IAS)