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The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Systematic Dozenal Nomenclature

Title: Systematic Dozenal Nomenclature
Author: John Kodegadulo
Year: 11EX
Subject: Systematic Dozenal Nomenclature
http://www.dozenal.org/../sites_bck/default/files/DSA_kodegadulo_sdn.pdf

This is the fully-fleshed out, definitive work on Systematic Dozenal Nomenclature, a powerful and robust way of speaking about and using dozenal numbers. Described in several parts in the DSA's Newscast in 11E9, the system was described briefly in this article in The Duodecimal Bulletin WN X0, followed by the full exposition in this article, originally published in The Duodecimal Bulletin WN X1. This standalone version was produced from an updated version provided by the author.
© 11E9-1205 (decimal 2013-2021). The Dozenal Society of America. Contact Us
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This website and the documents on it are licensed under a Creative Commons Attribution 3.0 Unported License.
Numeration on this site is in dozenal (also called duodecimal, or base twelve), using "X" for ten and "E" for eleven.
0 1 2 3 4 5 6 7 8 9 X E 10 11 12 13 14 15 16 17 18 19 1X 1E 20 21 22...
PDF documents may use a Dwiggins stylized "X" and "E" or the Pitman inverted "2" and "3".
The Humphrey point, or semicolon, is used for fractional parts; e.g., "0;6 = 0.5."