Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder7.xlned.com!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!news.stack.nl!aioe.org!.POSTED!not-for-mail From: Mark H Harris Newsgroups: comp.lang.python Subject: Re: Significant digits in a float? Date: Tue, 06 May 2014 11:29:50 -0500 Organization: Aioe.org NNTP Server Lines: 21 Message-ID: References: <535f0f9f$0$29965$c3e8da3$5496439d@news.astraweb.com> <535f3bf7$0$11109$c3e8da3@news.astraweb.com> <7xeh0ekv7s.fsf@ruckus.brouhaha.com> <5361CA91.30401@gmail.com> NNTP-Posting-Host: eSF12mcVRIwL+eMIMJ03mA.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 X-Notice: Filtered by postfilter v. 0.8.2 Xref: csiph.com comp.lang.python:70977 On 5/1/14 10:53 AM, William Ray Wing wrote: > I’m surprised no one has jumped in to defend/tout the Dietzgen slide rules > (which I always thought were the ultimate). Mine (their Vector Log Log) is > one of their Microglide series that had teflon rails inserted in the body > and is still totally stick-free after nearly 50 years. > http://www.marksmath.com/slide-rules/img/ed-n1725.jpg The above link is nice for the Dietzgen Microglide. It doesn't have the CF/m DF/m scales, but is a very nice Vector type log log. Most of my drafting equipment from the same era was Dietzgen; it looked like the previous video post featured the same/ My dad has one of these; but I can't get him to part with it yet... marcus