Re: Working with Log
- To: mathgroup at smc.vnet.net
- Subject: [mg112126] Re: Working with Log
- From: Peter <insomnia.berlin at gmail.com>
- Date: Tue, 31 Aug 2010 04:27:15 -0400 (EDT)
- References: <i5g0ku$grr$1@smc.vnet.net>
On 30 Aug., 12:20, Themis Matsoukas <tmatsou... at me.com> wrote: > I can use PowerExapnd to expand a Log: > > PowerExpand[Log[a b]] > > Log[a] + Log[b] > > How can I do the opposite, i.e. combine Log[a] + Log[b] into Log[a b]? > > Thanks > > Themis try: In[1]:= FullSimplify[Log[a]+Log[b],a>0<b] Out[1]= Log[a b] Peter