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Re: Finding an exponent?

• To: mathgroup at smc.vnet.net
• Subject: [mg112366] Re: Finding an exponent?
• From: Roland Franzius <roland.franzius at uos.de>
• Date: Sat, 11 Sep 2010 05:43:37 -0400 (EDT)
• References: <i6crg4$sak$1@smc.vnet.net>

Am 10.09.2010 10:50, schrieb AES:
> Given  Exp[ expr ]  where   expr  is some complex expression in Standard
> form, how can I get  expr  itself in an Input cell?   (Preferably
> unevaluated, and other than using manual Copy and Paste).
>
> Log[Exp[expr]] doesn't seem to do it.
>

Since Exp[expr] is in fact Power[E,expr], a function of two variables, 
the easiest way is to extract the second part

Exp[expr][[2]]

-- 

Roland Franzius