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Re: Simplifying Sqrt[a^2*d^2] -> a*d

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  • Subject: [mg8351] Re: Simplifying Sqrt[a^2*d^2] -> a*d
  • From: hans.steffani at (Hans Steffani)
  • Date: Tue, 26 Aug 1997 02:22:45 -0400
  • Organization: University of Technology Chemnitz, FRG
  • Sender: owner-wri-mathgroup at

carlos at mars.Colorado.EDU (Carlos A. Felippa) writes:

>I want Sqrt[a^2*d^2] to be automatically simplified to a*d
>wherever it appears in a very complex expression.  

>How do I do that in Mathematica?  
>The obvious rule expr/.{Sqrt[a^2*d^2]->a*d}  does not work.

For me the rule works. However, you may want to use PowerExpand[] .

Hans Friedrich Steffani
Hans Friedrich Steffani
Institut fuer Elektrische Maschinen und Antriebe, TU Chemnitz-Zwickau
mailto:hans.steffani at

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