       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)
• 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?
>
>
> 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.
>
>

```

• Prev by Date: Fixed points for system using PlotVectorField
• Next by Date: Re: [TS 28968] Mathematica SingularValueDecomposition failure
• Previous by thread: Re: Output display of exponential function in Mathematica
• Next by thread: Re: Re: Output display of exponential function in Mathematica