Re: log expression not simplified

*To*: mathgroup at smc.vnet.net*Subject*: [mg115666] Re: log expression not simplified*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Tue, 18 Jan 2011 05:47:13 -0500 (EST)

I don't know why it doesn't work; however, you can force it with PowerExpand Log[a/b]/Log[b/a] // PowerExpand // Simplify -1 Bob Hanlon ---- Praeceptor <gianluca.cruciani at poste.it> wrote: ============= Sorry, can anybody help me understand why Simplify[Log[a/b]/Log[b/a], Assumptions -> {a > 0, b > a}] doesn't reduce to -1 ?? Thanks (it's for a simple Carnot cycle calculation...)!