Series acting on a symbolic function
- To: mathgroup at smc.vnet.net
- Subject: [mg109494] Series acting on a symbolic function
- From: Igor Khavkine <igor.kh at gmail.com>
- Date: Fri, 30 Apr 2010 05:49:31 -0400 (EDT)
I would like to define a custom special function in Mathematica, let me call it F[x]. I want it to behave like Sin[x], BesselJ[0,x], etc. If the argument is symbolic, I do not want Mathematica to do any special simplifications or evaluations. However, when using Series[] in an expression like Series[... F[x] ..., {x,...}] I want Mathematica to be able to expand F[x] about any particular point, keeping in mind that F[x] is not analytic everywhere and may have special branch points about which a Puiseux or Log/power series expansion must be used. What is the standard way of defining such behavior on F[x]? Thanks in advance. Igor