Re: finding independent variable groups
- To: mathgroup at smc.vnet.net
- Subject: [mg32622] Re: finding independent variable groups
- From: Paul Abbott <paul at physics.uwa.edu.au>
- Date: Fri, 1 Feb 2002 02:02:23 -0500 (EST)
- Organization: University of Western Australia
- References: <a2e2q2$qmp$1@smc.vnet.net> <a2lkud$hu0$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Ioan Alexandre Romoscanu <romoscanu at imes.mavt.ethz.ch> wrote: > The formulae I need to manipulate are more complicated, and the goel > is to identify recurrect groups. According to Buckingham's Pi theorem, > a physical value per definition depends on a finite number of > non-dimensional parameters (see this nice page about this: > http://scienceworld.wolfram.com/physics/BuckinghamsPiTheorem.html) > > I have a large formula describing a complex material property. It is > really large (well, under 1 page, so to speak), so looking for the > combined non-dimensional group is tedious, if not impossible. I wonder > if this is doable with Mathematica. > > In other words, I would like Mathematica to find the (x/y) group in > the example. Simplify does not work, but since I need only a partial > simplification, I wonder if this is not still doable. There is a Notebook on the Buckingham Pi method by Mark J. McCready at http://www.nd.edu/~mjm/dimensional.analysis.nb. Cheers, Paul -- ____________________________________________________________________ Paul Abbott Phone: +61-8-9380-2734 Department of Physics Fax: +61-8-9380-1014 The University of Western Australia (CRICOS Provider No 00126G) 35 Stirling Highway Crawley WA 6009 mailto:paul at physics.uwa.edu.au AUSTRALIA http://physics.uwa.edu.au/~paul God IS a weakly left-handed dice player ____________________________________________________________________