Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed3.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 0.005 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'line:': 0.07; 'length)': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:python': 0.11; '(x,': 0.16; 'angle': 0.16; 'coordinates': 0.16; 'multiples': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'string': 0.17; 'trying': 0.21; 'subject:problem': 0.22; 'header:User-Agent:1': 0.26; 'values': 0.26; 'header:X-Complaints-To:1': 0.28; 'skip:- 10': 0.32; 'getting': 0.33; 'received:comcast.net': 0.33; 'to:addr:python- list': 0.33; 'skip:: 10': 0.35; 'expected': 0.35; 'received:org': 0.36; '(i.e.': 0.36; 'should': 0.36; 'why': 0.37; 'skip:( 30': 0.38; 'instead': 0.39; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'end': 0.40; 'email addr:gmail.com': 0.63; 'header:Reply-To:1': 0.68; 'reply-to:no real name:2**0': 0.72; '180': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Kene Meniru Subject: python math problem Followup-To: gmane.comp.python.general Date: Fri, 15 Feb 2013 14:39:27 -0500 Organization: illom.org Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Gmane-NNTP-Posting-Host: c-68-49-243-100.hsd1.md.comcast.net User-Agent: KNode/4.4.7 X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Kene.Meniru@illom.org 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: 24 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1360957179 news.xs4all.nl 6902 [2001:888:2000:d::a6]:59779 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:38952 I am trying to calculate the coordinates at the end of a line. The length and angle of the line are given and I am using the following formula: x = (math.sin(math.radians(angle)) * length) y = (math.cos(math.radians(angle)) * length) The following are sample answers in the format (x, y) to the given length/angle values of the line: 120/0 = (0.0, 25.0) 120/89 = (24.9961923789, 0.436310160932) 120/90 = (25.0, 1.53075794228e-15) 120/91 = (24.9961923789, -0.436310160932) Why am I getting a string number instead of the expected answer for 120/90 which should be (25.0, 0.0). This happens at all multiples of 90 (i.e. 180 and 270) -- Kene :::::::::::::::::: KeMeniru@gmail.com