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-Thread: 103376,aa463d25bcbdaa7 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news1.google.com!news.glorb.com!nntp.idg.pl!newsfeed.atman.pl!news2.icm.edu.pl!not-for-mail From: Andrew Nowicki Newsgroups: comp.lang.ada Subject: Octal number system Date: Mon, 01 Nov 2004 19:53:03 +0100 Organization: http://news.icm.edu.pl/ Message-ID: <4186860F.EF6C2749@nospam.com> References: <8h34o0dbc2h70ojvsst879nfkthko7suok@4ax.com> NNTP-Posting-Host: dial-166-15.dialup.medianet.pl Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-2 Content-Transfer-Encoding: 7bit X-Trace: achot.icm.edu.pl 1099335181 21730 193.192.166.15 (1 Nov 2004 18:53:01 GMT) X-Complaints-To: abuse@icm.edu.pl NNTP-Posting-Date: Mon, 1 Nov 2004 18:53:01 +0000 (UTC) X-Mailer: Mozilla 4.75 [en] (Windows NT 5.0; U) X-Accept-Language: en,pl Xref: g2news1.google.com comp.lang.ada:5957 Date: 2004-11-01T19:53:03+01:00 List-Id: Peter Hermann wrote in thread "decimal separator (international?:" > I would like the octal system. > If we only were Mickey Mice with 4 fingers/hand > we had no conversion problems :-) Anders Wirzenius wrote in thread "decimal separator (international?:" > I second that. The vegetable balance in my food shop > has eight buttons per line. Would be easier to find > the right button to press. An international auxiliary language called Ygyde has two optional number systems: decimal and octal. Octal glyphs are shaped like binary numbers, so they are very easy to memorize. Another good thing about Ygyde's glyphs is a very big full stop. http://www.medianet.pl/~andrew/ygyde/ygyde.htm Duodecimal system (base 12) was used for some purposes by the Romans. Hexadecimal system (base 16) is used by some modern computer software. Octal system (base 8) was used by some old computers. Vigesimal system (base 20) was used by the Mayans. Sexagesimal system (base 60) was used by the Babylonians. To the best of my knowledge the best number systems are octal and duodecimal. Octal has simpler multiplication table than decimal (base 10) and its numbers are almost as short. Duodecimal has only one advantage: non-recurring point fractions.