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Re: using rules for square roots

  • To: mathgroup at smc.vnet.net
  • Subject: [mg110425] Re: using rules for square roots
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Thu, 17 Jun 2010 02:05:27 -0400 (EDT)

On 6/16/10 at 5:42 AM, KHO at statoil.com (Kent Holing) wrote:

>What about nested square roots, such as returning ab for
>Sqrt[aSqrt[a^2 b^4]] etc.?

In[6]:= Sqrt[a Sqrt[a^2 b^4]] // PowerExpand

Out[6]= a b

In[7]:= Assuming[{a > 0, b > 0}, Simplify[Sqrt[a Sqrt[a^2 b^4]]]]

Out[7]= a b



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