Re: Re: Output display of exponential function in Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg62707] Re: [mg62686] Re: Output display of exponential function in Mathematica*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Fri, 2 Dec 2005 05:53:05 -0500 (EST)*Reply-to*: hanlonr at cox.net*Sender*: owner-wri-mathgroup at wolfram.com

?E E is the exponential constant e (base of natural logarithms), with numerical value approximately equal to 2.71828. ?Log Log[z] gives the natural logarithm of z (logarithm to base e). Log[b, z] gives the logarithm to base b. Log[1/E^2] -2 E^-2 1/E^2 E^(-1/2) 1/Sqrt[E] Bob Hanlon > > From: New Guy <NewGuy at yahoo.com> To: mathgroup at smc.vnet.net > Date: 2005/11/30 Wed PM 10:08:53 EST > Subject: [mg62707] [mg62686] Re: Output display of exponential function in Mathematica > > On Sun, 27 Nov 2005 08:24:53 +0000 (UTC), Bob Hanlon <hanlonr at cox.net> > wrote: > > >The output that you want is "unstable", i.e., Mathematica automatically > >converts it. > > > > Thanks. > > I have another question if you don't mind. > > I'm trying to just check and see if I got a whole bunch of > even-numbered study exercises right on exponents and natural logs. > The answers to the odds are in the book. > > As an example, LN(1/e^2) equals what? > > My answer is -1/2. > > In mathematica, I tried Simplify[LN(1/e^2)] and it just spit the same > thing out as the output. I also tried a couple of variations of > Solve[LN[1/e^2] = X] with essentially the same result > > How would you get Mathematica to verify that the answer is -1/2. > > Thanks a lot. > >