Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!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 0.073 X-Spam-Evidence: '*H*': 0.85; '*S*': 0.00; 'python': 0.09; 'lookup': 0.09; '(last': 0.16; '30"': 0.16; 'values:': 0.16; 'math': 0.20; '(you': 0.23; "i've": 0.23; 'header:In-Reply-To:1': 0.25; 'header :User-Agent:1': 0.26; 'arc': 0.29; 'to:addr:python-list': 0.33; 'table': 0.35; 'subject:?': 0.35; 'something': 0.35; 'but': 0.36; 'subject:with': 0.36; 'should': 0.36; 'subject:: ': 0.38; 'nothing': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'received:192.168': 0.40; 'skip:6 10': 0.63; 'more': 0.63; 'received:204': 0.72; 'paper': 0.78 Date: Fri, 14 Sep 2012 12:54:54 +0200 From: Laszlo Nagy User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120827 Thunderbird/15.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: What's wrong with my arc tangens calculation? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit 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: 12 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1347620106 news.xs4all.nl 6913 [2001:888:2000:d::a6]:59476 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:29151 > but when i lookup tg in a paper table (last decade math book) i've got these values: > > tg(63'10'') = 1.9768 > tg(63'20'') = 1.9912 > tg(63'30'') = 2.0057 > > For me python should return something more like 63'2x'' than 63'4x''(becasue 63'30'' is higher than 2.0) > > what's wrong? > 63° 30" is 63.5°. So nothing is wrong. (You know, 1° = 60 arc second!)