Defining a total derivative

*To*: mathgroup at smc.vnet.net*Subject*: [mg127750] Defining a total derivative*From*: S16 <sownak27 at gmail.com>*Date*: Sat, 18 Aug 2012 03:46:44 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net

Hi, I am very new to Mathematica, so need a bit of help! I want to define a function (called say G) that is defined as G = =E2=88=82/=E2=88=82x - ((=E2=88=82F/=E2=88=82x)/(=E2=88=82F/=E2=88=82= y))*=E2=88=82/=E2=88=82y Where F is some other function which will be defined. So as you can see, G is a differenital operator. Want to define it so that I can just do G[ some function ] rather than repeatedly write out the whole thing. Any help at all would be awesome! -S16