Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #26024

Re: the meaning of rﾕ.......ï¾

Path csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!194.109.133.85.MISMATCH!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <python-python-list@m.gmane.org>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.021
X-Spam-Evidence '*H*': 0.96; '*S*': 0.00; 'missed': 0.09; '*is*': 0.09; 'closest': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; '...]': 0.16; 'finney': 0.16; 'message- id:@dough.gmane.org': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'value:': 0.16; 'wed,': 0.16; 'wrote:': 0.17; '>>>': 0.18; 'are:': 0.20; 'not,': 0.21; '15,': 0.23; 'second': 0.24; 'header:In-Reply-To:1': 0.25; 'header:User- Agent:1': 0.26; 'header:X-Complaints-To:1': 0.28; 'adequate': 0.29; "d'aprano": 0.29; 'steven': 0.29; 'writes:': 0.29; 'from:addr:yahoo.co.uk': 0.32; 'to:addr:python-list': 0.33; 'another': 0.33; 'that,': 0.34; 'ben': 0.35; 'received:org': 0.36; 'anything': 0.36; 'skip:4 10': 0.37; 'far': 0.37; 'subject:: ': 0.38; 'mark': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'here:': 0.62; 'wide': 0.62; 'more': 0.63; '8bit%:40': 0.65; 'jul': 0.65; 'civil': 0.66; 'continued': 0.66; 'skip:\xe2 10': 0.66; 'believe': 0.69; 'subjectcharset:utf-8': 0.72; 'misses': 0.84; 'received:89': 0.86; 'maarten': 0.91
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: the meaning of rﾕ.......ï¾
Date Wed, 25 Jul 2012 07:37:33 +0100
References <CAEMsKDun53k2Kyk9TFT1kBxFB2zgp7rhA3W0LLPuS74+nbwiPA@mail.gmail.com> <mailman.2455.1343030385.4697.python-list@python.org> <500d0632$0$1504$c3e8da3$76491128@news.astraweb.com> <roy-D44797.08552123072012@news.panix.com> <jujja3$dfn$1@speranza.aioe.org> <mailman.2467.1343050549.4697.python-list@python.org> <jujkut$hr3$1@speranza.aioe.org> <jujl4b$hr3$2@speranza.aioe.org> <jujlc7$hr3$3@speranza.aioe.org> <mailman.2476.1343054550.4697.python-list@python.org> <jujnv8$osp$3@speranza.aioe.org> <mailman.2482.1343057226.4697.python-list@python.org> <jujs7j$hd2$1@reader1.panix.com> <mailman.2536.1343136913.4697.python-list@python.org> <87r4s1rzv2.fsf@benfinney.id.au> <45c8f299-3420-4836-afcb-6e07957ba344@googlegroups.com> <87lii8sfmw.fsf@benfinney.id.au> <500f8d0c$0$11120$c3e8da3@news.astraweb.com>
Mime-Version 1.0
Content-Type text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding 8bit
X-Gmane-NNTP-Posting-Host host-89-243-205-160.as13285.net
User-Agent Mozilla/5.0 (Windows NT 6.0; rv:14.0) Gecko/20120713 Thunderbird/14.0
In-Reply-To <500f8d0c$0$11120$c3e8da3@news.astraweb.com>
X-Antivirus avast! (VPS 120724-1, 24/07/2012), Outbound message
X-Antivirus-Status Clean
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.12
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.2561.1343198175.4697.python-list@python.org> (permalink)
Lines 52
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1343198175 news.xs4all.nl 6954 [2001:888:2000:d::a6]:32809
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:26024

Show key headers only | View raw

On 25/07/2012 07:07, Steven D'Aprano wrote:
> On Wed, 25 Jul 2012 13:07:03 +1000, Ben Finney wrote:
>
>> Maarten <maarten.sneep@knmi.nl> writes:
>>
>>> You just missed it:
>>> 22/7
>>
>> Which is appropriate, since 22/7 misses π by a wide margin. (355/113 is
>> my favourite approximation to π, and is far more accurate.)
>
> Approximation? Pffft. I use the exact value:
>
> π = 16*arctan(1/5) - 4*arctan(1/239)
>
>
> For those lacking ambition, another approximation is:
>
> π ≈ 9801 ÷ (2206*√2)
>
> Other interesting approximations are:
>
> π ≈ 9/5 + √(9/5)
>
> π ≈ √√(2143/22)
>
> See more here:
>
> http://mathworld.wolfram.com/PiFormulas.html
> http://mathworld.wolfram.com/PiApproximations.html
>
>
>> −1 on associating 22/7 as anything to do with π.
>
> I believe that 22/7 is the closest approximation to π with a denominator
> under 100. It is the second convergent of the continued fraction:
>
> π = [3; 7, 15, 1, 292, 1, 1, 1, 2, 1, 3, 1, 14, 2, 1, 1, 2, 2, 2, 2, ...]
>
> which means that, like it or not, 22/7 *is* associated with π.
>
>
>

Any civil engineers reading this who would find 22/7 perfectly adequate 
for their task?

-- 
Cheers.

Mark Lawrence.

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: the meaning of r’.......‘ Chris Angelico <rosuav@gmail.com> - 2012-07-23 17:59 +1000
  Re: the meaning of r’.......‘ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 08:07 +0000
    Re: the meaning of rﾕ.......ï¾ Roy Smith <roy@panix.com> - 2012-07-23 08:55 -0400
      Re: the meaning of rﾕ.......�¾ Chris Angelico <rosuav@gmail.com> - 2012-07-23 23:06 +1000
        Re: the meaning of r¹.......?3Ž4 Roy Smith <roy@panix.com> - 2012-07-23 09:22 -0400
        Re: the meaning of rﾕ.......�¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 15:59 +0000
          Re: the meaning of rﾕ.......�¾ Chris Angelico <rosuav@gmail.com> - 2012-07-24 02:10 +1000
          Re: the meaning of r?.......?¾ Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-23 16:46 -0400
          Re: the meaning of r`.......` Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2012-07-24 10:45 +0200
      Re: the meaning of rﾕ.......ï¾ Alex Strickland <sscc@mweb.co.za> - 2012-07-23 15:10 +0200
      Re: the meaning of rﾕ.......�¾ Dave Angel <d@davea.name> - 2012-07-23 09:22 -0400
        Re: the meaning of rﾕ.......�¾ Larry Hudson <orgnut@yahoo.com> - 2012-07-24 00:01 -0700
      Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 15:24 +0200
        Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-23 23:35 +1000
          Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 15:52 +0200
            Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 15:55 +0200
              Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 15:59 +0200
                Re: the meaning of rﾕ.......ï¾ Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2012-07-23 16:08 +0200
                Re: the meaning of rﾕ.......ï¾ Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-23 15:43 +0100
                Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 16:43 +0200
                Re: the meaning of rﾕ.......ï¾ Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-23 16:29 +0100
                Re: the meaning of rﾕ.......ï¾ John Gordon <gordon@panix.com> - 2012-07-23 15:56 +0000
                Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-24 02:09 +1000
                Re: the meaning of rﾕ.......ï¾ Ben Finney <ben+python@benfinney.id.au> - 2012-07-25 00:35 +1000
                Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-25 00:50 +1000
                Re: the meaning of rﾕ.......ï¾ Maarten <maarten.sneep@knmi.nl> - 2012-07-24 07:44 -0700
                Re: the meaning of rﾕ.......ï¾ Ben Finney <ben+python@benfinney.id.au> - 2012-07-25 13:07 +1000
                Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-25 14:11 +1000
                Re: the meaning of rﾕ.......ï¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-25 06:07 +0000
                Re: the meaning of rﾕ.......ï¾ Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-25 07:37 +0100
                Re: the meaning of rﾕ.......ï¾ Ben Finney <ben+python@benfinney.id.au> - 2012-07-25 16:43 +1000
                Re: the meaning of rﾕ.......ï¾ Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-25 08:13 +0100
                Re: the meaning of rﾕ.......ï¾ Ian Kelly <ian.g.kelly@gmail.com> - 2012-07-25 09:21 -0600
                Re: the meaning of rﾕ.......ï¾ Ian Kelly <ian.g.kelly@gmail.com> - 2012-07-24 10:36 -0600
                Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-25 02:42 +1000
                Re: the meaning of rﾕ.......ï¾ Ethan Furman <ethan@stoneleaf.us> - 2012-07-24 09:59 -0700
                Re: the meaning of rﾕ.......ï¾ Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-24 10:02 -0400
                Re: the meaning of rﾕ.......ï¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 17:10 +0000
                Re: the meaning of rﾕ.......ï¾ rusi <rustompmody@gmail.com> - 2012-07-23 08:08 -0700
              Re: the meaning of rﾕ.......ï¾ Jan Riechers <janpeterr@freenet.de> - 2012-07-23 21:29 +0300
            Re: the meaning of rﾕ.......ï¾ Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-23 10:10 -0400
              Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 16:40 +0200
                Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-24 00:53 +1000
                Re: the meaning of rﾕ.......ï¾ Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-23 11:02 -0400
              Re: the meaning of rﾕ.......ï¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 16:54 +0000
            Re: the meaning of rﾕ.......ï¾ Chris Angelico <rosuav@gmail.com> - 2012-07-24 00:19 +1000
              Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 16:42 +0200
                Re: the meaning of rﾕ.......ï¾ Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-23 14:10 -0400
            Re: the meaning of rﾕ.......ï¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 16:53 +0000
        Re: the meaning of r?.......ï¾ MRAB <python@mrabarnett.plus.com> - 2012-07-23 16:46 +0100
        Re: the meaning of rﾕ.......ï¾ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 16:33 +0000
          Re: the meaning of rﾕ.......ï¾ Ross Ridge <rridge@csclub.uwaterloo.ca> - 2012-07-23 14:43 -0400
      Re: the meaning of rﾕ.......ï¾ Henrik Faber <hfaber@invalid.net> - 2012-07-23 15:26 +0200
      Re: the meaning of r.......ïŸ Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-23 15:49 +0000
        Re: the meaning of r.......ïŸ Serhiy Storchaka <storchaka@gmail.com> - 2012-07-26 16:34 +0300
      Re: the meaning of rﾕ.......ï¾ Ross Ridge <rridge@csclub.uwaterloo.ca> - 2012-07-23 12:19 -0400
      Re: the meaning of r?.......?¾ Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-23 13:44 -0400
  Re: the meaning of r’.......‘ John Roth <johnroth1@gmail.com> - 2012-07-23 17:50 -0700
  Re: the meaning of r’.......‘ John Roth <johnroth1@gmail.com> - 2012-07-23 17:50 -0700

csiph-web