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,FREEMAIL_FROM autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 2002:a6b:3dd:: with SMTP id e90-v6mr14796ioi.85.1533777829809; Wed, 08 Aug 2018 18:23:49 -0700 (PDT) X-Received: by 2002:aca:de07:: with SMTP id v7-v6mr2412oig.5.1533777829701; Wed, 08 Aug 2018 18:23:49 -0700 (PDT) Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!feeder4.usenet.farm!feed.usenet.farm!feeder.usenetexpress.com!feeder-in1.iad1.usenetexpress.com!border1.nntp.dca1.giganews.com!nntp.giganews.com!g24-v6no2457393iti.0!news-out.google.com!g5-v6ni1238iti.0!nntp.google.com!g24-v6no2457390iti.0!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail Newsgroups: comp.lang.ada Date: Wed, 8 Aug 2018 18:23:49 -0700 (PDT) In-Reply-To: Complaints-To: groups-abuse@google.com Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=2a02:c7d:3c35:b000:325a:3aff:fe0f:37a5; posting-account=L2-UcQkAAAAfd_BqbeNHs3XeM0jTXloS NNTP-Posting-Host: 2a02:c7d:3c35:b000:325a:3aff:fe0f:37a5 References: User-Agent: G2/1.0 MIME-Version: 1.0 Message-ID: <4eb1890f-9b7f-449d-85da-1b2a1288f566@googlegroups.com> Subject: Re: Newton-Levenberg-Marquardt method in Ada? From: Lucretia Injection-Date: Thu, 09 Aug 2018 01:23:49 +0000 Content-Type: text/plain; charset="UTF-8" Xref: reader02.eternal-september.org comp.lang.ada:54099 Date: 2018-08-08T18:23:49-07:00 List-Id: On Thursday, 9 August 2018 00:35:56 UTC+1, van.s...@jpl.nasa.gov wrote: > A colleague is developing an instrument to measure CO2 and oxygen concentration in the International Space Station. > > In order to do that, he needs to invert a nonlinear function. > > The usual way to do that is a Newton-Levenberg-Marquardt iteration. > > Many numerical libraries have software for it in Fortran or C. > > Does anybody have a highly-reliable Newton-Levenberg-Marquardt method in Ada? You can import C and Fortran until you write your own in Ada.