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Re: log expression not simplified

  • To: mathgroup at smc.vnet.net
  • Subject: [mg115691] Re: log expression not simplified
  • From: Bill Rowe <readnews at sbcglobal.net>
  • Date: Tue, 18 Jan 2011 05:52:03 -0500 (EST)

On 1/17/11 at 5:41 AM, gianluca.cruciani at poste.it (Praeceptor) wrote:

>Simplify[Log[a/b]/Log[b/a], Assumptions -> {a > 0, b > a}]

>doesn't reduce to -1 ??

I don't have a good answer to your question but you can achieve
what you want with

In[8]:= Log[a/b]/Log[b/a] // PowerExpand // Simplify

Out[8]= -1



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