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Re: Radicals simplify

• To: mathgroup at smc.vnet.net
• Subject: [mg106386] Re: Radicals simplify
• From: dh <dh at metrohm.com>
• Date: Mon, 11 Jan 2010 05:30:35 -0500 (EST)
• References: <hic37h$5ef$1@smc.vnet.net>

Hi,

why do you think x(x^2 y^3)^(1/4) is simpler than (x^6 y^3)^(1/4)?

MMA needs some criterion for this decision. The default criterion is the 

"LeafCount[..]". If that does not suit you, you must define another 

criterion.

Daniel



francix wrote:

> Hi,

> I am using Matematica 7 and need some help with Radicals.

> 

> If I do

> Simplify[(x^4 y^3)^(1/4), x >= 0] I correctly have

> 

> x (y^3)^(1/4)

> 

> But If I do

> 

> Simplify[(x^6 y^3)^(1/4), x >= 0] I get

> 

> (x^6 y^3)^(1/4) and not the correct answer  x(x^2 y^3)^(1/4)

> 

> Thanks in advanced.

> 

> 

> 

> 

> 

> 

> 

• Follow-Ups:
  • Re: Re: Radicals simplify
    • From: Murray Eisenberg <murray@math.umass.edu>