Re: Integrate returns 0
- To: mathgroup at smc.vnet.net
- Subject: [mg23935] Re: Integrate returns 0
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Fri, 16 Jun 2000 00:57:18 -0400 (EDT)
- Organization: Universitaet Leipzig
- References: <8i9pj8$2hq@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, a bug the integral is never zero. Regards Jens "Felix E. Klee" wrote: > > Hi, > > when I define the function > f[x_,n_]:=D[Exp[-x^2],{x,n}]^2 > and execute > Integrate[f[x,n],{x,-Infinity,Infinity}] > the result is > 0 > > However this is not correct for all parameters n since > Integrate[f[x,1],{x,-Infinity,Infinity}] > returns > Sqrt[Pi/2] > > Is this a bug in Mathematica or am I doing something wrong? > > TIA, > > Felix