plt_evolve.pro

NAME: plt_evolve PURPOSE: Computes new planet descriptors at the given time offsets from the given planet descriptors using the taylor series expansion corresponding to the derivatives contained in the given planet descriptor. CATEGORY: NV/LIB/PLT CALLING SEQUENCE: pdt = plt_evolve(px, dt) ARGUMENTS: INPUT: px: Any subclass of PLANET. dt: Time offset. OUTPUT: NONE KEYWORDS: INPUT: nodv: If set, derivatives will not be evolved. copy: If set, the evolved descriptor is copied into the input descriptor and it is freed. The input descriptor is returned. OUTPUT: NONE RETURN: Array (npd,ndt) of newly allocated descriptors, of class PLANET, evolved by time dt, where npd is the number of px, and ndt is the number of dt. STATUS: Complete MODIFICATION HISTORY: Written by: Spitale, 1/1998 Adapted by: Spitale, 5/2016