Path: ccsf.homeunix.org!ccsf.homeunix.org!news1.wakwak.com!nf1.xephion.ne.jp!onion.ish.org!gcd.org!vda-gw!news.moat.net!news.glorb.com!postnews.google.com!f14g2000cwb.googlegroups.com!not-for-mail From: "Vladimir Bondarenko" Newsgroups: sci.math.symbolic,comp.soft-sys.math.maple,sci.math,fj.sci.math Subject: Re: An exact 1-D integration challenge - 3 Date: 8 Feb 2005 22:09:13 -0800 Organization: http://groups.google.com Lines: 16 Message-ID: <1107929353.842327.232750@f14g2000cwb.googlegroups.com> References: <1107555276.418478.215730@f14g2000cwb.googlegroups.com> <1107559162.508814.123220@f14g2000cwb.googlegroups.com> NNTP-Posting-Host: 217.117.72.190 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Trace: posting.google.com 1107929359 14817 127.0.0.1 (9 Feb 2005 06:09:19 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Wed, 9 Feb 2005 06:09:19 +0000 (UTC) User-Agent: G2/0.2 Complaints-To: groups-abuse@google.com Injection-Info: f14g2000cwb.googlegroups.com; posting-host=217.117.72.190; posting-account=DooOggwAAADdcqtzKMrYoQ_DNGq8lCTf Xref: ccsf.homeunix.org fj.sci.math:1619 hru...@odds.stat.purdue.edu (Herman Rubin) wrote on 5 Feb 2005 10:31:44 -0500 HR> The not sufficiently well known expansion of exp(z^2)*erf(z) is HR> HR> C*(z + 2*z^3/3 + 2^2*z^5/(3*5) + 2^3*z^7/(3*5*7) + ... ) Thank you for a nice idea! Using it Herr Vogt cracked the integral in a jiffy! Best wishes, Vladimir Bondarenko