From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: David Scheidt Newsgroups: gmane.emacs.help Subject: Re: program to compute gears, with table Date: Sun, 10 Sep 2017 02:06:05 +0000 (UTC) Organization: PANIX Public Access Internet and UNIX, NYC Message-ID: References: <86bmmlu54a.fsf@zoho.com> <86pob1rsbx.fsf@zoho.com> NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1505009437 15023 195.159.176.226 (10 Sep 2017 02:10:37 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 10 Sep 2017 02:10:37 +0000 (UTC) User-Agent: tin/2.0.0-20110823 ("Ardenistiel") (UNIX) (NetBSD/7.1 (i386)) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Sep 10 04:10:29 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 1dqrhV-00038n-JQ for geh-help-gnu-emacs@m.gmane.org; Sun, 10 Sep 2017 04:10:21 +0200 Original-Received: from localhost ([::1]:51457 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dqrhc-0003Mi-PR for geh-help-gnu-emacs@m.gmane.org; Sat, 09 Sep 2017 22:10:28 -0400 Original-Path: usenet.stanford.edu!panix!not-for-mail Original-Newsgroups: gnu.emacs.help,rec.bicycles.tech Original-Lines: 49 Original-NNTP-Posting-Host: panix3.panix.com Original-X-Trace: reader2.panix.com 1505009165 5080 166.84.1.3 (10 Sep 2017 02:06:05 GMT) Original-X-Complaints-To: abuse@panix.com Original-NNTP-Posting-Date: Sun, 10 Sep 2017 02:06:05 +0000 (UTC) Original-Xref: usenet.stanford.edu gnu.emacs.help:220116 rec.bicycles.tech:1003661 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:114222 Archived-At: In rec.bicycles.tech Joerg wrote: :On 2017-09-08 12:59, David Scheidt wrote: :> In rec.bicycles.tech Joerg wrote: :> :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. :> :> I rewrote his code in common lisp in less time than it takes excel to :> start. :> :Wow, you must be able to type at hundreds of letter a second. Here, it :takes less than 2sec for Excel to start. Mostly only a split second to :open the file because I usually have it running nearly all the time. On my mac at work, from the time I double click the excel icon to the time it is ready to do work is over a minute. It's a modern machine, running an old version of excel. The windows machine I have, but never use, which is more powerful, and running a current version, takes even longer. It does have a spinny disk, and not an ssd. (that's not counting the time to takes to boot up, since it's off.) -- sig 57