Integration under Mathematica 5.0

*To*: mathgroup at smc.vnet.net*Subject*: [mg57417] Integration under Mathematica 5.0*From*: José Carlos Santos <jcsantos at fc.up.pt>*Date*: Fri, 27 May 2005 04:56:56 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

Hi all, At another newsgroup, someone has transcribed this Mathematica session: In[1]:=$Version Out[1]=5.0 for Microsoft Windows (November 18, 2003) In[2]:=Integrate[Sqrt[1+Sqrt[u]]/(E^(a*u)*(2*Sqrt[2]*Sqrt[u])),{u,0,1}] Out[2]=(1/3)*(4 - Sqrt[2]) This makes no sense, because the integral does depend upon the parameter _a_ (just ask Mathematica to plot the graph). I do not have access to Mathematica 5.0, but under the version 4.0 I do not get that answer; what I get is the same integral written in a slightly different form. Can someone reproduce that behaviour? And, if it is possible to reproduce it, can someone *explain* it? BTW, the value (1/3)*(4 - Sqrt[2]) is the value of the integral when a = 0. Best regards, Jose Carlos Santos

**Follow-Ups**:**Re: Integration under Mathematica 5.0***From:*Murray Eisenberg <murray@math.umass.edu>

**Re: Integration under Mathematica 5.0***From:*Chris Chiasson <chris.chiasson@gmail.com>

**Re: Integration under Mathematica 5.0***From:*Daniel Lichtblau <danl@wolfram.com>