Re: how to define and analyze function with multiple parts

*To*: mathgroup at smc.vnet.net*Subject*: [mg130544] Re: how to define and analyze function with multiple parts*From*: "djmpark" <djmpark at comcast.net>*Date*: Sat, 20 Apr 2013 05:43:09 -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*References*: <30816429.39892.1366348976163.JavaMail.root@m06>

You could try Piecewise and make certain you know proper Mathematica syntax. A more specific and complete posting might give rise to a more complete answer. David Park djmpark at comcast.net http://home.comcast.net/~djmpark/index.html From: pjanakir1978 at gmail.com [mailto:pjanakir1978 at gmail.com] Hi, I have a function on the plane that has 2 different formulation for 2 different regions. Let x = (x1, ..., xn). I want to define it as U(x) = U_1(x) if x is in region 1 = U_2(x) if x is in region 2 Then I want to analyze such a defined function, like find its max, etc, using NMaximize, or put in some other expressions in place of x, to see behavior of U. Essentially, how does one define a multipart function, so that we can analyze it in the same way we may analyze a single part function or polynomial? Thanks. Prabhu