Re: fuctional differentiation in Mathematica
- To: mathgroup@smc.vnet.net
- Subject: [mg11027] Re: fuctional differentiation in Mathematica
- From: Rolf Mertig <Rolf@Mertig.com>
- Date: Mon, 16 Feb 1998 18:15:30 -0500
- Organization: Mertig Research & Consulting
- References: <6c3e7q$1ds@smc.vnet.net>
Richard Easther wrote: > > Hi! Does anyone know of a Mathematica package that implements functional > differentiation? > > Any pointers would be very much appreciated! > > Regards, > Richard > > easther@het.brown.edu For some basic tasks like deriving Feynman rules automatically from a given Lagrangian I have programmed this once in Mathematica; it is part of the Mathematica package FeynCalc3.0. You can have a look at the reference guide (http://www.mertig.com/fcrefguide) and check for the functions "FunctionalD" and "FeynRule". Regards, Rolf Mertig