Re: Defining a derivative that distributes for a function

*To*: mathgroup at smc.vnet.net*Subject*: [mg64244] Re: Defining a derivative that distributes for a function*From*: "Borut Levart" <BoLe79 at gmail.com>*Date*: Wed, 8 Feb 2006 03:53:31 -0500 (EST)*References*: <ds9mqp$48$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

What you desire can be achieved by mapping D over the functions in the sum, i.e.: D[#, x] & /@ (f[x^2] + f[x^4]) Bye, Borut Levart