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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