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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,2a5cdfc27475c02f X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-06-03 18:03:36 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!newsfeed.freenet.de!fu-berlin.de!uni-berlin.de!82-43-33-254.cable.ubr01.croy.blueyonder.co.UK!not-for-mail From: "Nick Roberts" Newsgroups: comp.lang.ada Subject: Re: How to model unknown values in a vector? Date: Wed, 4 Jun 2003 02:04:29 +0100 Message-ID: References: NNTP-Posting-Host: 82-43-33-254.cable.ubr01.croy.blueyonder.co.uk (82.43.33.254) X-Trace: fu-berlin.de 1054688615 10910081 82.43.33.254 (16 [25716]) X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.50.4807.1700 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4807.1700 Xref: archiver1.google.com comp.lang.ada:38562 Date: 2003-06-04T02:04:29+01:00 List-Id: "Harald Schmidt" wrote in message news:BAFE7E15.3898%harald.schmidt@anobject.net... > Does anyone know how to model values in a vector, > which are unknown. I can't use the zero value > because this is a valid value. Minus infinity could be an > option, but I am searching for a better method to > handle unknown values. IEEE 745 defines loads of NaNs. If your target machine has some NaNs, and your compiler provides some way (presumably non-standard) to get at these values in programs, that might be a possible solution. Best of luck. -- Nick Roberts Jabber: debater@charente.de [ICQ: 159718630]