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Re: Simplify exponents in output
 To: mathgroup at smc.vnet.net
 Subject: [mg99211] Re: [mg99155] Simplify exponents in output
 From: "David Park" <djmpark at comcast.net>
 Date: Thu, 30 Apr 2009 06:20:38 0400 (EDT)
 References: <23370564.1240992256434.JavaMail.root@n11>
Because your statement is not generally true. In particular it is not true
for negative x.
(64 x^9)^(1/3) == 4 x^3;
% /. x > 1
False
But for positive x:
(64 x^9)^(1/3);
Simplify[%, x > 0]
4 x^3
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/
From: davef [mailto:davidfrick2003 at yahoo.com]
When I attempt to solve the following in Mathematica:
(64 x^9)^(1/3)
I get this:
4 (x^9)^1/3
Why don't I get:
4x^3
IOW, why doesn't Mathematica simplify the variable under the radical in the
output?
I am using Mathematica 7.
Thanks.
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