Defining operators containing derivatives
- To: mathgroup at smc.vnet.net
- Subject: [mg67879] Defining operators containing derivatives
- From: "cosmicstring" <cosmicstring at gmail.com>
- Date: Tue, 11 Jul 2006 05:58:56 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I have been using Mathematica as a simple calculator but now I need something different which Mathematica is capable of but out of my knowledge. I have, say, two operators: A:=D[f[x,theta],x]+Sinh[2*x]*D[f[x,theta],theta] B:=-Sinh[x+I*theta*]*D[f[x,theta],x]+Cosh[2*x]*D[f[x,theta],theta]+Tanh[5*x]*f[x,theta] I want to define A and B as operators and apply them to any f[x,theta] as, AB f[x,theta]+BA g[x,theta] Any help would be appreciated.