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.