---- START NEW MESSAGE --- Received: from cherry.ease.lsoft.com [209.119.0.109] by dpmail10.doteasy.com with ESMTP (SMTPD32-8.05) id A391605021E; Tue, 27 Jan 2004 17:42:41 -0800 Received: from PEAR.EASE.LSOFT.COM (209.119.0.19) by cherry.ease.lsoft.com (LSMTP for Digital Unix v1.1b) with SMTP id <7.00CC002C@cherry.ease.lsoft.com>; Tue, 27 Jan 2004 20:42:31 -0500 Received: from MITVMA.MIT.EDU by MITVMA.MIT.EDU (LISTSERV-TCP/IP release 1.8e) with spool id 7646 for PICLIST@MITVMA.MIT.EDU; Tue, 27 Jan 2004 20:42:26 -0500 Received: from MITVMA (NJE origin SMTP@MITVMA) by MITVMA.MIT.EDU (LMail V1.2d/1.8d) with BSMTP id 3039; Tue, 27 Jan 2004 20:40:57 -0500 Received: from rs26s12.datacenter.cha.cantv.net [200.44.33.31] by mitvma.mit.edu (IBM VM SMTP Level 430) via TCP with ESMTP ; Tue, 27 Jan 2004 20:40:57 EST X-Comment: mitvma.mit.edu: Mail was sent by rs26s12.datacenter.cha.cantv.net Received: from carlos98 ([161.196.167.115]) by rs26s12.datacenter.cha.cantv.net (8.12.9/8.12.6/3.0) with SMTP id i0S1ertE017296 for ; Tue, 27 Jan 2004 21:40:57 -0400 X-Matched-Lists: [] MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by rs26s12.datacenter.cha.cantv.net id i0S1ertE017296 Message-ID: <001301c3e53f$ad6ce0c0$0100a8c0@carlos98> Date: Tue, 27 Jan 2004 21:34:04 -0400 Reply-To: pic microcontroller discussion list Sender: pic microcontroller discussion list From: Carlos Marcano Subject: [OT:] Curves intersection To: PICLIST@MITVMA.MIT.EDU Precedence: list X-RCPT-TO: Status: U X-UIDL: 371856007 Hi all: I got to admit that I am struggling with something that I should know = as an engineer. I need to find analitically the points of intersection of tw= o curves, that is: I) y=3D 1-(x*x) II) y=3D sen(x) Normally that would be as simple as doing I=3DII and resolving but in thi= s case the fact that II is a trigonometrical ecuation brings some issues to the resolution. Having 1 - (x*x) =3D sen(x) I can=B4t find a way to get = the posible values for x. I could try a graphical solution but I want the analitical (i.e. numerical) solution. Any ideas? *Carlos* --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.572 / Virus Database: 362 - Release Date: 27/01/04 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads .