Re: Question about Integration and citation

*To*: mathgroup at smc.vnet.net*Subject*: [mg126299] Re: Question about Integration and citation*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Sun, 29 Apr 2012 02:11:51 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201204280924.FAA00644@smc.vnet.net>*Reply-to*: murray at math.umass.edu

You have a Mathematica syntax error in the integrand. I presume you meant: Integrate[Log[1 + a x]*x^n*E^(-b x), {x, 0, Infinity}] You'll get a ConditionalExpression result from that (in Mathematica 8.0.4 at least). For citation, I did a Google search on "how to cite mathematica" and found: http://support.wolfram.com/kb/472 On 4/28/12 5:24 AM, mehdimolu wrote: > Hi, > I need to perform an integration as follows: > > ---> Integrate[Log(1+a x)*x^n*E^(-b x),{x,0,Infinity}] > > The Mathematica installed on my mac performs the integration and outputs > some results but when I use wolframalpha,the answer is "No more results > available", even after pressing "Try again with more time" button. > > the other question is that I need a citation when I use the mentioned > integration in a paper but I searched in several integration table books and > http://functions.wolfram.com website but could not find anything for > citation. > can any one, please, help me... -- 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**:**Question about Integration and citation***From:*mehdimolu <mehdimortazawi@gmail.com>