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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>
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