Path: csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder1-2.proxad.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Joe Riel Newsgroups: comp.soft-sys.math.maple Subject: Re: A hypergeometric formula Date: Wed, 10 Sep 2014 09:05:22 -0700 Organization: A noiseless patient Spider Lines: 15 Message-ID: <877g1b1mwt.fsf@san.rr.com> References: <0d083247-0434-4923-9388-56b4a98b55e9@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Info: mx05.eternal-september.org; posting-host="15591ad2607da309a0d1a78a1d632bc7"; logging-data="22230"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX194lYuRCaWarGF6+zjWsL8K" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (gnu/linux) Cancel-Lock: sha1:z2/E0Ef0fWvTUMtPNA+JHZ7a+Nw= sha1:y+e2BslvTwVOLMKuZ+YcLxW9zBE= Xref: csiph.com comp.soft-sys.math.maple:944 peter.luschny@gmail.com writes: > 2*GAMMA(3/2)*hypergeom([1/2,0],[3/2,0,-1/2],-1) /sqrt(Pi) = ? > > Peter (**) y := 2*GAMMA(3/2)*hypergeom([1/2,0],[3/2,0,-1/2],-1) /sqrt(Pi); y := hypergeom([1/2], [-1/2, 3/2], -1) (**) simplify(y); sin(2) - cos(2) -- Joe Riel