From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,6d7a86bff9319841 X-Google-Attributes: gid103376,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!Xl.tags.giganews.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local02.nntp.dca.giganews.com!nntp.posted.internetamerica!news.posted.internetamerica.POSTED!not-for-mail NNTP-Posting-Date: Tue, 02 Dec 2008 22:18:05 -0600 From: R. B. Love Newsgroups: comp.lang.ada Date: Tue, 2 Dec 2008 22:18:05 -0600 Message-ID: <2008120222180516807-rblove@airmailnet> References: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Subject: Re: Where I find Bessel function for Ada ? User-Agent: Unison/1.8.1 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 98.199.16.233 X-Trace: sv3-Ox14wErgu/c3CD+l2TuLQyAAhHphzjF1vpaUxdPyuLepignWEqB9C+GBo+07GAAlKO1x/yok1aJo9jq!Xb0gDoitYc25gzOkuf8y1qrKiYyx7XRJHVPHU2PLJeUlFzWWg482X0U1crEXItpAGmta7pOA6hek!Ono= X-Complaints-To: abuse@airmail.net X-DMCA-Complaints-To: abuse@airmail.net X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.39 Xref: g2news1.google.com comp.lang.ada:2854 Date: 2008-12-02T22:18:05-06:00 List-Id: On 2008-11-26 06:57:09 -0600, "Dmitry A. Kazakov" said: > Well, if there is no Ada code, then I would also consider to implement it > from scrap. There is an excellent book "Mathematical Functions and Their > Approximations" by Yudell L. Luke: > > http://www.amazon.com/Mathematical-Functions-Their-Approximations-Yudell/dp/0124599508 If > > I correctly remember it contains coefficients of Chebyshev polynomial > approximations for various Bessel functions with a huge number of decimal > places. Chebyshev polynomes are fairly simple and efficient to sum. Do you work on comission? That's a $700 book.