Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news.albasani.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.175 X-Spam-Level: * X-Spam-Evidence: '*H*': 0.67; '*S*': 0.02; 'referring': 0.07; 'cc:addr :python-list': 0.11; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'sooner.': 0.16; 'wrote:': 0.18; 'wed,': 0.18; 'cc:addr:python.org': 0.22; 'earlier': 0.24; 'cc:2**0': 0.24; 'header:In-Reply-To:1': 0.27; 'leave': 0.29; 'am,': 0.29; 'message-id:@mail.gmail.com': 0.30; 'but': 0.35; 'received:google.com': 0.35; 'appearance': 0.36; 'height': 0.36; 'minutes,': 0.36; 'subject:?': 0.36; 'url:org': 0.36; 'reported': 0.39; 'tell': 0.60; 'first': 0.61; "you'll": 0.62; 'story': 0.63; '30,': 0.65; 'minutes': 0.67; 'six': 0.68; 'batchelder': 0.84; 'phenomenon': 0.84; 'resulted': 0.84; 'to:none': 0.92 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=ibyZNVA7l9E7t8c2zQmuZNJrrRPjlM9YDoeEBpbAYW8=; b=zrIH5tbOAuOiRosEsDEhtOhcjxuuhZbLkJzclE6QktS80T+5X2sf8oPNFAR5oIIZ/7 cytvcDDODCo6b+tSzDCTqV4FH4cVymlpev2k3CLq93hVTKsuUdASXKM36hgIysQQ/kdg KFZZbqEKSDyhwXWhDiaxI+A3cnnstctpalG8e5CDrPB+dh/Jo4DcRBgnjYd27bruv7F2 74YQ8O53TjCHfVUhpzXuhqbwWVoOn9G8Tz7zsGeuI7w1x9tBeCPw9V9oaa5gSP2Zhs47 XeXb8EtL3XupIaIDFVtEPXzs96M3UwwW2lGuv1wh3AfAjKkFfWo6q0mIWJC8QBQo7eg0 rJ7Q== MIME-Version: 1.0 X-Received: by 10.58.28.204 with SMTP id d12mr22555veh.81.1398790787156; Tue, 29 Apr 2014 09:59:47 -0700 (PDT) In-Reply-To: References: <535f0f9f$0$29965$c3e8da3$5496439d@news.astraweb.com> Date: Wed, 30 Apr 2014 02:59:47 +1000 Subject: Re: Significant digits in a float? From: Chris Angelico Cc: "python-list@python.org" Content-Type: text/plain; charset=UTF-8 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 10 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1398790794 news.xs4all.nl 2846 [2001:888:2000:d::a6]:38677 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:70721 On Wed, Apr 30, 2014 at 2:47 AM, Ned Batchelder wrote: > Reminds me of the story that the first survey of Mt. Everest resulted in a > height of exactly 29,000 feet, but to avoid the appearance of an estimate, > they reported it as 29,002: http://www.jstor.org/stable/2684102 Yeah. Exactly the same phenomenon as I was referring to earlier when I said that you never tell someone you need to leave in five minutes - if you say six minutes, you'll be away sooner. ChrisA