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MathGroup Archive 2004

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Re: Inverse of "PowerExpand"

  • To: mathgroup at smc.vnet.net
  • Subject: [mg51703] Re: Inverse of "PowerExpand"
  • From: Karl_boehme_9 at msn.com (Klaus G)
  • Date: Fri, 29 Oct 2004 03:40:20 -0400 (EDT)
  • References: <clprd6$a40$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

> Klaus,> One method...
> Log[a] + 2*Log[b] - Log[c];
> % //. (a_.)*Log[b_] + (c_.)*Log[d_] -> Log[b^a*d^c]
> 
> Log[(a*b^2)/c]

OK. But you assume that you know how to add logarithms..

> Concerning your previous posting, an expression like...
> \!\(Log[\(a\ b\^2\)\/c]\)
> can be copied and pasted into a Mathematica notebook even though it is not
> easy to read in a posting. An Input/Output cell can be converted to
> InputForm before copying into a posting or the Copy As Input Form palette
> can be downloaded from..

Of course you are right. I'm quite new at version 5, so I have to get
used to the different types of formatting.

Klaus G.


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