From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Joerg Newsgroups: gmane.emacs.help Subject: Re: program to compute gears, with table Date: Fri, 08 Sep 2017 12:56:19 -0700 Message-ID: References: <86bmmlu54a.fsf@zoho.com> <86pob1rsbx.fsf@zoho.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: blaine.gmane.org 1504900851 13751 195.159.176.226 (8 Sep 2017 20:00:51 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 8 Sep 2017 20:00:51 +0000 (UTC) User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070728 Thunderbird/2.0.0.6 Mnenhy/0.7.6.666 To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Fri Sep 08 22:00:46 2017 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dqPS8-0002mE-DW for geh-help-gnu-emacs@m.gmane.org; Fri, 08 Sep 2017 22:00:36 +0200 Original-Received: from localhost ([::1]:47118 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dqPSF-00008X-Lc for geh-help-gnu-emacs@m.gmane.org; Fri, 08 Sep 2017 16:00:43 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help,rec.bicycles.tech Original-Lines: 33 Original-X-Trace: individual.net c+OSXM1DKTas9wbZ2q54owX06lSFYqfyDG2n9a5XclMtE90gei Cancel-Lock: sha1:057jlg0ef5reFzzYHbsV84Mql/g= In-Reply-To: <86pob1rsbx.fsf@zoho.com> Original-Xref: usenet.stanford.edu gnu.emacs.help:220097 rec.bicycles.tech:1003535 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.help:114204 Archived-At: On 2017-09-08 10:52, Emanuel Berg wrote: > Skip Montanaro wrote: > >> * Why the 1.0 divisor when computing gear? > > As explained, otherwise it'll be integer > division. But I think that qualifies as a hack > (not an ugly hack tho) so there is no shame in > spotting it an "error" :) > >> * You can skip the radius and use wheel >> (diameter) directly in computing >> the circumference. > > Right! > >> * It never occurred to me to do this in Lisp. >> I always just use an online calculator, like: >> >> http://www.gear-calculator.com/?GR=DERS&KB=34,50&RZ=12,13,15,17,19,21,23,25&UF=2150&TF=90&SL=2.6&UN=KMH > > Let's agree there is no need to do it in Lisp. > Only a desire :) > Why make things complicated? I do such stuff with spreadsheets. That's what they were invented for. Part of every office software including free ones. -- Regards, Joerg http://www.analogconsultants.com/