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,a2fc935b18b13f2e X-Google-Attributes: gid103376,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!news4.google.com!feeder.news-service.com!85.214.105.209.MISMATCH!news.eternal-september.org!news.motzarella.org!motzarella.org!nospam From: "John B. Matthews" Newsgroups: comp.lang.ada Subject: Re: Generic_Roots Date: Fri, 07 Nov 2008 08:36:44 -0500 Organization: The Wasteland Message-ID: References: X-Trace: news.eternal-september.org U2FsdGVkX1+PA5e0cLk08iCa/ubQoH09DO6b9p9TDsv/QuFd7tpfvXoXa1sFBQEcrNofuPnlUbuSYg7tA7YTAGPq3VcTqRGTot8lVbMwhqqx9iRLNM1du6fPQsMI7vK996lvgg2/UGrU7kxdmDGkzg== X-Complaints-To: Please send complaints to abuse@motzarella.org with full headers NNTP-Posting-Date: Fri, 7 Nov 2008 13:36:45 +0000 (UTC) X-Auth-Sender: U2FsdGVkX1/0uYXPL/Sm3G4yoteEDANG23/eHUpYd/WYBPyc1UAvSw== Cancel-Lock: sha1:7qiCGec3ufpL1O4IlMAr5qEhiEo= User-Agent: MT-NewsWatcher/3.5.2 (PPC Mac OS X) Xref: g2news2.google.com comp.lang.ada:8344 Date: 2008-11-07T08:36:44-05:00 List-Id: In article , "Randy Brukardt" wrote: > "John B. Matthews" wrote [...] > > [...] > Umm, AI95-0356 is "Support for Preemption Level Locking Policy". > > You mean AI95-0346 "Roots of polynomials". Yes, thank you! I've corrected the reference and added links to the CVS. > You might want to pass this implementation past John Barnes, as he was the > original proposer of that AI. Ah, I see now that he was the initial author. In the implementation advice, he suggested "using established techniques such as Laguerre's method." My implementation is definitely experimental, but it's a convenient alternative. My test cases are limited, so I'd be interested to hear of any anomalies. Of course, I expect most users are using BLAS. -- John B. Matthews trashgod at gmail dot com http://home.roadrunner.com/~jbmatthews/