Re: Simple indefinite integral disagrees with table
- To: mathgroup at smc.vnet.net
- Subject: [mg28654] Re: Simple indefinite integral disagrees with table
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sat, 5 May 2001 04:00:40 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <9ctb6k$m4h@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, function arguments enclosed in [] not in () and you actual calculate Integrate[aa*x^2*Cos,xx] instead of In[]:=Integrate[xx Cos [aa xx], xx] Out[]=Cos[aa*xx]/aa^2 + (xx*Sin[aa*xx])/aa Regards Jens Mitch Berkson wrote: > > The Mathematica solution to the indefinite integral below doesn't agree with > that found in my CRC tables. > > Integrate[xx Cos (aa xx), xx] > = (1/3) aa Cos xx^3 > > The CRC table gives: (1/aa^2) Cos (aa xx) + (xx/aa) Sin (aa xx) > > The Mathematica solution doesn't look right. Thanks for any help. > > Mitch Berkson