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=-2.9 required=5.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,32a0f046ed0b7cbe X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2004-01-22 15:42:29 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!nnx.oleane.net!oleane!teaser.fr!enst.fr!melchior!cuivre.fr.eu.org!melchior.frmug.org!not-for-mail From: Stephen Leake Newsgroups: comp.lang.ada Subject: Re: Differentation in Ada? Date: 22 Jan 2004 18:40:45 -0500 Organization: Cuivre, Argent, Or Message-ID: References: NNTP-Posting-Host: lovelace.ada-france.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: melchior.cuivre.fr.eu.org 1074814854 98886 80.67.180.195 (22 Jan 2004 23:40:54 GMT) X-Complaints-To: usenet@melchior.cuivre.fr.eu.org NNTP-Posting-Date: Thu, 22 Jan 2004 23:40:54 +0000 (UTC) To: comp.lang.ada@ada-france.org Return-Path: In-Reply-To: User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 X-Virus-Scanned: by amavisd-new-20030616-p5 (Debian) at ada-france.org X-BeenThere: comp.lang.ada@ada-france.org X-Mailman-Version: 2.1.3 Precedence: list List-Id: Gateway to the comp.lang.ada Usenet newsgroup List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Xref: archiver1.google.com comp.lang.ada:4685 Date: 2004-01-22T18:40:45-05:00 "Bill Ward" writes: > Well I would like to calculate the velocity of a particle travelling along > a curve that is rotating around a fixed point: > _ > v = [ dr ] _ _ > ------ = w X r > [ dt ] > > r being the distance from the particle to the fixed point. > t is time > w is the anular velocity So all you need are Cartesian vectors and cross products. See http://www.toadmail.com/~ada_wizard/ada/sal.html. -- -- Stephe