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