Re: How to help Mathematica take an integral

*To*: mathgroup at smc.vnet.net*Subject*: [mg81915] Re: How to help Mathematica take an integral*From*: "David W.Cantrell" <DWCantrell at sigmaxi.net>*Date*: Sat, 6 Oct 2007 04:46:02 -0400 (EDT)*References*: <fe4udu$12q$1@smc.vnet.net>

Aaron Fude <aaronfude at gmail.com> wrote: > Hi, > > I would like to evaluate the indefinite integral of Erf[Log[x]]. > Mathematica seems to be able to do any definite integral, but not the > indefinite version. Is there anything I can do to help Mathematica > along? I don't understand why you're having a problem. Using version 5.2 at least, there is no need to help Mathematica: In[5]:= Integrate[Erf[Log[x]], x] Out[5]= (-E^(1/4))*Erf[-(1/2) + Log[x]] + x*Erf[Log[x]] David