Re: Simplify problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg95851] Re: [mg95785] Simplify problem*From*: "David Park" <djmpark at comcast.net>*Date*: Wed, 28 Jan 2009 06:35:11 -0500 (EST)*References*: <11779144.1233058594460.JavaMail.root@m02>

One suggestion, and you'll probably get many. expr = 1/Sqrt[1 + 1/x] expr /. Power[y_, exp_] -> Power[1/y, -exp] // Simplify David Park djmpark at comcast.net http://home.comcast.net/~djmpark/ From: tidy512 at googlemail.com [mailto:tidy512 at googlemail.com] Hi I am using Simplify / FullSimplify etc. to simplify some equations I have, but I am unable to coerce Mathematica into automatically giving me the form I require for some of the sub-expressions, e.g. I'd like 1/Sqrt[1 + 1/x] to be automatically converted to Sqrt[x/(1 + x)] 'x' is always of type Real and greater-than 0 btw. I would appreciate any help or tips anyone can provide on this. Thanks