From: David Scheidt <dscheidt@panix.com>
To: help-gnu-emacs@gnu.org
Subject: Re: program to compute gears, with table
Date: Fri, 8 Sep 2017 19:59:16 +0000 (UTC) [thread overview]
Message-ID: <oousqk$i1f$1@reader2.panix.com> (raw)
In-Reply-To: f1gaupFhe87U4@mid.individual.net
In rec.bicycles.tech Joerg <news@analogconsultants.com> 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.
--
sig 106
next prev parent reply other threads:[~2017-09-08 19:59 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 5:33 program to compute gears, with table Emanuel Berg
2017-09-08 8:46 ` Graham
2017-09-08 15:50 ` Frank Krygowski
2017-09-08 21:56 ` Emanuel Berg
2017-09-08 17:44 ` Emanuel Berg
2017-09-08 11:09 ` Skip Montanaro
2017-09-08 11:27 ` tomas
2017-09-08 12:12 ` Skip Montanaro
2017-09-08 17:09 ` David Scheidt
2017-09-08 23:45 ` Emanuel Berg
[not found] ` <mailman.158.1504868984.14750.help-gnu-emacs@gnu.org>
2017-09-08 17:52 ` Emanuel Berg
2017-09-08 19:56 ` Joerg
2017-09-08 19:59 ` David Scheidt [this message]
2017-09-08 23:55 ` Emanuel Berg
2017-09-09 19:17 ` Joerg
2017-09-09 19:46 ` Emanuel Berg
2017-09-10 2:06 ` David Scheidt
2017-09-10 14:59 ` Joerg
2017-09-23 5:42 ` DougC
2017-09-23 6:41 ` Emanuel Berg
2017-09-24 1:05 ` Joy Beeson
2017-09-11 5:02 ` Tosspot
2017-09-11 5:19 ` Emanuel Berg
2017-09-08 23:51 ` Emanuel Berg
2017-09-09 21:08 ` Tomas Nordin
2017-09-14 12:24 ` Stefan Monnier
2017-09-14 19:33 ` Tomas Nordin
2017-09-14 20:51 ` Emanuel Berg
2017-09-14 23:49 ` Nick Helm
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