From phma@webjockey.net Thu Apr 10 19:42:48 2003 Return-Path: X-Sender: lojban-out@lojban.org X-Apparently-To: lojban@yahoogroups.com Received: (EGP: mail-8_2_6_5); 11 Apr 2003 02:42:48 -0000 Received: (qmail 5067 invoked from network); 11 Apr 2003 02:42:48 -0000 Received: from unknown (66.218.66.217) by m14.grp.scd.yahoo.com with QMQP; 11 Apr 2003 02:42:48 -0000 Received: from unknown (HELO digitalkingdom.org) (204.152.186.175) by mta2.grp.scd.yahoo.com with SMTP; 11 Apr 2003 02:42:48 -0000 Received: from lojban-out by digitalkingdom.org with local (Exim 4.12) id 193oV6-0002Ev-00 for lojban@yahoogroups.com; Thu, 10 Apr 2003 19:42:48 -0700 Received: from digitalkingdom.org ([204.152.186.175] helo=chain) by digitalkingdom.org with esmtp (Exim 4.12) id 193oUO-0002Eb-00; Thu, 10 Apr 2003 19:42:04 -0700 Received: with ECARTIS (v1.0.0; list lojban-list); Thu, 10 Apr 2003 19:42:03 -0700 (PDT) Received: from 208-150-110-21-adsl.precisionet.net ([208.150.110.21] helo=blackcat.ixazon.lan) by digitalkingdom.org with esmtp (Exim 4.12) id 193oUF-0002EO-00 for lojban-list@lojban.org; Thu, 10 Apr 2003 19:41:55 -0700 Received: by blackcat.ixazon.lan (Postfix, from userid 1001) id 23D642FB2; Fri, 11 Apr 2003 02:41:25 +0000 (UTC) Organization: dis To: lojban-list@lojban.org Subject: [lojban] diameter, radius, center, midpoint Date: Thu, 10 Apr 2003 22:41:24 -0400 User-Agent: KMail/1.5 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Message-Id: <200304102241.24691.phma@webjockey.net> X-archive-position: 4748 X-ecartis-version: Ecartis v1.0.0 Sender: lojban-list-bounce@lojban.org Errors-to: lojban-list-bounce@lojban.org X-original-sender: phma@webjockey.net Precedence: bulk X-list: lojban-list From: Pierre Abbat Reply-To: phma@webjockey.net X-Yahoo-Group-Post: member; u=92712300 I looked at Recent Changes on jbovlaste and saw {mijgresirji}, which means "diameter" in the sense of a line passing through the center of something. There are other senses: Given a set of points, the diameter is the distance between the two farthest points, or the line through them. The center is the point such that the distance from it to the farthest point is a minimum. A radius is the distance from the center to a farthest point, or the line through the center and a farthest point. I use AutoCAD, and I often draw a line from the center of an arc, or its midpoint, to some other point. The center of an arc is not as defined above (which would be the midpoint of its chord, unless it's more than half a circle), but the center of the circle of which it is an arc; the midpoint is the point on the arc equidistant from the ends. The center of a line and the midpoint of a circle are undefined. How should these distinctions be said in Lojban? phma -- .i toljundi do .ibabo mi'afra tu'a do .ibabo damba do .ibabo do jinga .icu'u la ma'atman.