Re: Strange behavior of Simplify

*To*: mathgroup at smc.vnet.net*Subject*: [mg40160] Re: Strange behavior of Simplify*From*: bobhanlon at aol.com (Bob Hanlon)*Date*: Mon, 24 Mar 2003 04:28:26 -0500 (EST)*References*: <b5jtgf$mah$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

$Version 4.2 for Mac OS X (August 22, 2002) expr = Exp[2*n^2*(Log[1 + t] - Log[1 - t])]; expr // ExpandAll // Simplify (1 + t)^(2*n^2)/(1 - t)^(2*n^2) FullSimplify[expr, ComplexityFunction -> Length] (1 + t)^(2*n^2)/(1 - t)^(2*n^2) Bob Hanlon In article <b5jtgf$mah$1 at smc.vnet.net>, Selwyn Hollis <selwynh at earthlink.net> wrote: << Subject: Strange behavior of Simplify From: Selwyn Hollis <selwynh at earthlink.net> To: mathgroup at smc.vnet.net Date: Sun, 23 Mar 2003 09:07:27 +0000 (UTC) I've just run across the following strange behavior of Simplify. (Using Mathematica 4.1.5, Mac OS X). These first two commands work as expected: Simplify[Exp[2*n*(Log[1 + t] - Log[1 - t])]] (1 - t)^(-2*n) (1 + t)^(2*n) Simplify[Exp[n^2*(Log[1 + t] - Log[1 - t])]] (1 - t)^(-n^2) (1 + t)^(n^2) But Simplify refuses to do anything with this: Simplify[Exp[2*n^2*(Log[1 + t] - Log[1 - t])]] Exp[2*n^2*(Log[1 + t] - Log[1 - t])] Can anyone shed some light here? By the way, FullSimplify does the same thing. >><BR><BR>