Re: How to get rid of If[ ... ] in a result
- To: mathgroup at smc.vnet.net
- Subject: [mg65181] Re: [mg65149] How to get rid of If[ ... ] in a result
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Fri, 17 Mar 2006 00:13:25 -0500 (EST)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
y=If[Element[x, Integers],y1,y2]; Simplify[y,Element[x, Integers]] y1 Simplify[y,!Element[x, Integers]] y2 Bob Hanlon > > From: "hanspi" <hanspi at schmid-werren.ch> To: mathgroup at smc.vnet.net > Subject: [mg65181] [mg65149] How to get rid of If[ ... ] in a result > > Dear Mathematica users, > > I often get results like the following when I do symbolic sums, in this > case of a Sin[ ... ]: > > ... ... ... If[2/T Element Integers, x, y] ... ... > > Now I know that 2/T is an Integer. How can I tell Mathematica that this > is so, such that it removes the 'If'? It seems that Assumptions don't > work for sums. > > Kind regards, > Hanspeter > >