From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Emanuel Berg Newsgroups: gmane.emacs.help Subject: Re: distance from Easter Island to Chile Date: Sun, 20 Apr 2014 17:14:31 +0200 Organization: Aioe.org NNTP Server Message-ID: <87mwfg823s.fsf@nl106-137-194.student.uu.se> References: <87mwfguasr.fsf@nl106-137-194.student.uu.se> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1398006923 20239 80.91.229.3 (20 Apr 2014 15:15:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 20 Apr 2014 15:15:23 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Apr 20 17:15:18 2014 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1WbtSf-0003We-VJ for geh-help-gnu-emacs@m.gmane.org; Sun, 20 Apr 2014 17:15:18 +0200 Original-Received: from localhost ([::1]:45862 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WbtSf-0006BW-G4 for geh-help-gnu-emacs@m.gmane.org; Sun, 20 Apr 2014 11:15:17 -0400 Original-Path: usenet.stanford.edu!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!194.109.133.86.MISMATCH!newsfeed.xs4all.nl!newsfeed3a.news.xs4all.nl!xs4all!news.stack.nl!aioe.org!.POSTED!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 34 Original-NNTP-Posting-Host: VVbyYd/iFZoeWNmD9i++cQ.user.speranza.aioe.org Original-X-Complaints-To: abuse@aioe.org User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) X-Notice: Filtered by postfilter v. 0.8.2 Cancel-Lock: sha1:FepDMRDF5oWJF3OpGfpjYZ+WQuM= Mail-Copies-To: never Original-Xref: usenet.stanford.edu gnu.emacs.help:205001 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:97266 Archived-At: Frank Stutzman writes: > As a realative newie to doing fancy things in emacs, > I am amazed and amused that this 1) can be done at > all, and 2) can be done so elegantly. Thank you! Actually that is an extremely straightforward implementation of the formula - but nonetheless, yes, Lisp (and Elisp) is just *gorgeous* from an aesthetic point of view, and it is very fast for doing simple things. Check out my update to the code in response to Mr. Margolin's comments for some refinements. > Or at least it looks it looks like it should be that > should be the case. For whatever reason, though, > when I evaluate ... > > I get an answer of 4301.199 That's normal - this is a mathematical method to calculate the distance between two spots on a sphere. But the world of math isn't exactly the world of - well, the world. The distance figure I got from the web is the (much more) accurate one, but I cannot say what methods are behind it. Safe to say, it is less abstract/general, and more practical. -- underground experts united: http://user.it.uu.se/~embe8573