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MathGroup Archive 2005

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Re: Re: Output display of exponential function in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62701] Re: [mg62686] Re: Output display of exponential function in Mathematica
  • From: "David Park" <djmp at earthlink.net>
  • Date: Thu, 1 Dec 2005 00:46:06 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

You have to use the correct Mathematica syntax. E and Log instead of e and
LN. You don't even have to use Simplif in this case.

Log[1/E^2]
-2

David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/

From: New Guy [mailto:NewGuy at yahoo.com]
To: mathgroup at smc.vnet.net


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.



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