galpy.potential.Potential.Rphideriv¶
-
Potential.
Rphideriv
(R, Z, phi=0.0, t=0.0)¶ NAME:
RphiderivPURPOSE:
evaluate the mixed radial, azimuthal 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/dphidRHISTORY:
2014-06-30 - Written - Bovy (IAS)