Re: Re: Re: Bug?
- To: mathgroup at smc.vnet.net
- Subject: [mg16033] Re: [mg15970] Re: [mg15854] Re: Bug?
- From: BobHanlon at aol.com
- Date: Sat, 20 Feb 1999 02:52:14 -0500
- Sender: owner-wri-mathgroup at wolfram.com
In a message dated 2/19/99 3:37:40 PM, nfares at aol.com-noauto writes: >I also get the same response, specifically: > >Integrate[Exp[x]/Log[x], x] > >Log::argt: Log called with 0 arguments; 1 or 2 > arguments are expected. > >I'm running Mathematica 3.0.1.1.x (front end) and 3.0 (kernel) on a Power >Macintosh G3. > >A workaround that I've found is to type: > >Integrate[ Exp[x] / Log[x,E], x ] // InputForm > >-ExpIntegralEi[x] + E^x*Log[x] > >It seems the problem may be localized to Macintosh OSes. > Nabil, Unfortunately, your workaround does not work. This can be verified by differentiating your results. The reason that you arrived at the wrong result is that Log[x] is Log[E, x] not Log[x, E]. Even if you use Log[a, x] (in hopes of later substitution of a by E) Mathematica returns the same error message. Bob Hanlon