From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,5412c98a3943e746 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.231.138 with SMTP id tg10mr2551567pbc.7.1331729981592; Wed, 14 Mar 2012 05:59:41 -0700 (PDT) Path: h9ni25176pbe.0!nntp.google.com!news1.google.com!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: REAL Date: Wed, 14 Mar 2012 13:59:51 +0100 Organization: cbb software GmbH Message-ID: References: <9207716.776.1331054644462.JavaMail.geo-discussion-forums@ynaz38> <4edda5mav3cf$.149pbgyxl1wx5.dlg@40tude.net> <9rplcgF5a2U1@mid.individual.net> <1psd0g0womgxi.1sle7ol12x3d5.dlg@40tude.net> <9rsahhFmr3U1@mid.individual.net> <9rvdjvFfa8U1@mid.individual.net> <4pp58h1br5sp$.yylr20e5vzxb.dlg@40tude.net> <9s1s7tF6pcU1@mid.individual.net> <1oln2mjlozzh5$.1mxrd97lrgndo.dlg@40tude.net> <9s4mseFuoaU1@mid.individual.net> <9sb3l3Fs4oU1@mid.individual.net> <4f6063b7$0$6642$9b4e6d93@newsspool2.arcor-online.net> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Date: 2012-03-14T13:59:51+01:00 List-Id: On Wed, 14 Mar 2012 12:14:05 +0100, stefan-lucks@see-the.signature wrote: > Hardly anyone cares enough to analyze how the error grows from operation > to operation. Hardly anyone even bothers to define how close the result > should to be -- which depends on the application at hand, of course. It is largely the hardware to blame. When the machine rounds, it is more difficult to keep track on precision, comparing to a truncating machine (in either direction). Of course, interval arithmetic should have replaced IEEE long ago. But nobody cares. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de