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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,c7637cfdf68e766 X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,c7637cfdf68e766 X-Google-Attributes: gidf43e6,public X-Google-Thread: f8362,c7637cfdf68e766 X-Google-Attributes: gidf8362,public X-Google-Thread: 107079,c7637cfdf68e766 X-Google-Attributes: gid107079,public X-Google-Thread: 109d8a,c7637cfdf68e766 X-Google-Attributes: gid109d8a,public From: Mark Eichin Subject: Re: floating point comparison Date: 1997/08/08 Message-ID: #1/1 X-Deja-AN: 262891776 References: <33E61497.33E2@pseserv3.fw.hac.com> <33E6D359.3EF4@imbi.uni-freiburg.de> <33E74A62.53E2@pseserv3.fw.hac.com> <5sar4r$t7m$1@cnn.nas.nasa.gov> Followup-To: comp.lang.ada Organization: Cygnus Solutions, Eastern USA Newsgroups: comp.lang.ada,sci.math.num-analysis,comp.software-eng,comp.theory,sci.math Date: 1997-08-08T00:00:00+00:00 List-Id: hmm, is there an Ada package to do error-bounds-propagated arithmetic? (I recall writing a FORTRAN package for this in a high school Chemistry class, for doing lab report calculations, a couple of million years ago :-) It was an implementation of the simple intro-to-chemistry rules for error bounds (I don't recall if it handled significant figures.) Then you end up with the error-bounds upon error-bounds issue ("25 +/- 3.013597%" :-) Needless to say this doesn't handle the whole issue, it was definitely an amateur shot at the problem - but given that it's a "real world" problem, I'd be curious to see a real world solution...)