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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no 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: g2news2.google.com!news1.google.com!newshub.sdsu.edu!flph200.ffdc.sbc.com!prodigy.net!flph199.ffdc.sbc.com!prodigy.com!flpi107.ffdc.sbc.com!nlpi070.nbdc.sbc.com.POSTED!ffbda4aa!not-for-mail Reply-To: "Nasser Abbasi" From: "Nasser Abbasi" Newsgroups: comp.lang.ada References: <2008120222180516807-rblove@airmailnet> Subject: Re: Where I find Bessel function for Ada ? X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3138 X-RFC2646: Format=Flowed; Response X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 Message-ID: NNTP-Posting-Host: 75.37.151.146 X-Complaints-To: abuse@prodigy.net X-Trace: nlpi070.nbdc.sbc.com 1228600952 ST000 75.37.151.146 (Sat, 06 Dec 2008 17:02:32 EST) NNTP-Posting-Date: Sat, 06 Dec 2008 17:02:32 EST Organization: at&t http://my.att.net/ X-UserInfo1: Q[R_PJSCOPUUS_DS\@^HJFP@AJYZTB\MV@BT]_MIJQR@EPIB_VUKAH_[MTX\IS[K[NGYJJFNOFZR_G[BUNTAOQLFE^TEHRPI]PZZRP_BMDSFQFL_]CBHXRWCMDCUZAZN@D_AKMNLEI]MWHCSXL^]NNC__CZFGSGHYYXWPFG@SCAVA]\FT\@B\RDGENSUQS^M Date: Sat, 6 Dec 2008 14:02:28 -0800 Xref: g2news2.google.com comp.lang.ada:3879 Date: 2008-12-06T14:02:28-08:00 List-Id: "R. B. Love" wrote in message news:2008120222180516807-rblove@airmailnet... > 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: >> .... > > Do you work on comission? That's a $700 book. > That is the problem with using Ada for scientific software. The language is great for scientific software implementation, but it comes with limited number of related functions ready to use. It is not practical for someone to implement these functions from scratch each time they want to use one in their scientific application. It takes a long time to develop robust mathematical functions. Is it not possible to link to some C library which has the implementation of this function? I am sure there is some C code out there which does this. Write a binding to it? Nasser