Re: Simplifying Sqrt[a^2*d^2] -> a*d
- To: mathgroup at smc.vnet.net
- Subject: [mg8351] Re: Simplifying Sqrt[a^2*d^2] -> a*d
- From: hans.steffani at e-technik.tu-chemnitz.de (Hans Steffani)
- Date: Tue, 26 Aug 1997 02:22:45 -0400
- Organization: University of Technology Chemnitz, FRG
- Sender: owner-wri-mathgroup at wolfram.com
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
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--
Hans Friedrich Steffani
Institut fuer Elektrische Maschinen und Antriebe, TU Chemnitz-Zwickau
mailto:hans.steffani at e-technik.tu-chemnitz.de
http://www.tu-chemnitz.de/~hfst/