Re: Improper Integral & Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg80602] Re: [mg80577] Improper Integral & Mathematica
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Sun, 26 Aug 2007 23:11:41 -0400 (EDT)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200708260711.DAA04031@smc.vnet.net>
- Reply-to: murray at math.umass.edu
Did you remember to use E rather than e to denote the base of natural
logs? (Or to use Esc ee Esc for a symbol that means E. If you don't
know about the distinction between E and e, then you had better read the
basic documentation about Mathematica.
Better yet, use Exp[x] and Exp[2x].
Mathematica then will give you the value without any further work on
your part.
expizzaiolo at gmail.com wrote:
> Hi all ! :-)
>
> how to solve:
>
> Integrate[(e^x) / (1 + e^(2x)), {x, - Infinity, + Infinity }]
>
> using Mathematica? I'm trying "e^x = t" but won't work...
>
>
>
> TNX!
>
>
--
Murray Eisenberg murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower phone 413 549-1020 (H)
University of Massachusetts 413 545-2859 (W)
710 North Pleasant Street fax 413 545-1801
Amherst, MA 01003-9305
- References:
- Improper Integral & Mathematica
- From: expizzaiolo@gmail.com
- Improper Integral & Mathematica