Re: Is the answer for this Integral correct???

*To*: mathgroup at smc.vnet.net*Subject*: [mg54310] Re: Is the answer for this Integral correct???*From*: "Scout" <user at domain.com>*Date*: Wed, 16 Feb 2005 14:36:59 -0500 (EST)*References*: <curuei$t3l$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

For x in complex numbers, yes. But not for x in Reals! If you write: [In]:= Integrate[ Log[x] / x , {x, -1, 1}, Assumptions-> x\[Element]Reals] you obtain: [Out]:= "Integral of ... does not converge on ..." etc. ~Scout~ "zeno" <zeno333 at mindspring.com> ha scritto nel messaggio news:curuei$t3l$1 at smc.vnet.net... > Using Mathematica 4.2, I get the answer of 0 for this Integral.... > > Integrate[Log[x]/x, {x, -1 , 1}] > > Is this the correct answer??? > > Mathemtica output below...... > ___________________________ > > In[3]:= (21:43:17 on 2/14/05 > Integrate[Log[x]/x, {x, -1 ,1}] > > Out[3]= (21:43:17 on 2/14/05) > 0 >