Re: Picewise Function
- To: mathgroup at smc.vnet.net
- Subject: [mg82089] Re: Picewise Function
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 12 Oct 2007 02:47:50 -0400 (EDT)
- Organization: Uni Leipzig
- References: <fek98d$lae$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi, how to find out that the function is undefined when the "result of the evaluation is <= 0.25." without evaluate it ?? Or may a simple res= (est07[zve + kap] - est07[zve])/kap; If[res<=1/4,Return[res],Return[Indeterminate]] help ?? Regards Jens Frank Hechtner wrote: > hi, > > I'm in trouble with a function. i created the following one > (est07[zve + kap] - est07[zve])/kap (something about german taxes, > refers to other functions) > > Now i want mathematica to tell that this function uses a specific > domain. The function should only be defined if the result of the > evaluation is <= 0.25. > > Does anyone know how to realize this=? > Thanks for help > > frank >