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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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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.

Resources

A collection of tools and resources for working with the dozenal system.

Dozenal and Decimal Scientific Calculator

Dozenal and Decimal Scientific Calculator

Utility

High-precision scientific calculator in dozenal and decimal with conversion among Primel, TGM, USC, Imperial, and SI metrologies.

Paul Rapoport

Web

Dozenal and Decimal Scientific Calculator

Dozenal and Decimal Solitaire Games

Dozenal and Decimal Solitaire Games

Game

Practice in dozenal (and decimal) arithmetic.

Paul Rapoport

Web

Dozenal and Decimal Solitaire Games

A Converter

A Converter

Utility

An online converter for TGM, UUS, and other metric systems.

Takashi Suga

Web

A Converter

Chord Dialer

Chord Dialer

Educational

A simple printable, craftable chord dialer, using dozenal numbers to identify harmonious chords

Troy (Donald Hammond)

Chord Dialer

LaTeX Package: dozenal

dozenal

Font

Fonts and tools for dozenal in TeX and LaTeX

Donald P. Goodman III

4.0

Download from CTAN

Dozenal OEIS Scripts

Dozenal OEIS

Utility

Permits viewing and searching OEIS in dozenal.

James Wood

1.2.1

Dozenal OEIS

Alternative Base Systems Worksheets

Alternative Base Systems Worksheets

Educational

Instructional sheets and worksheets about non-decimal bases, devised for a program offered to a conference of the ASEE

Jen Seron and Dan Simon

https://dozenal.org/drupal/sites_bck/default/files/asee_11e9_dsa.zip

KDE Desktop Dozenal Clock

dozenal-tgm-clock

Utility

Plasma applet for KDE desktop featuring a TGM (hour-based) clock and dozenal date.

Donald P. Goodman III

https://dozenal.org/drupal/sites_bck/default/files/dozenal-tgm-clock_0.zip

Dozensonline Dozenal Userscripts

Dozensonline Dozenator

Utility

Dozenizes and provides other useful tools for the DozensOnline forum.

James Wood

1.6.4

Dozensonline Dozenator

TGM Measurement Tools

TGM Measurement Tools

Guide

Sheets and guides for easily producing TGM measurement tools, like rulers, scales, measuring spoons and cups, and so forth

Donald P. Goodman III

https://dozenal.org/drupal/content/tgm_tool_files.html

Treisaran SVG Fonts for Pitman Characters

Treisaran SVG Fonts for Pitman Characters

font

Treisaran's SVG fonts, with Pitman character matching a variety of free fonts

Treisaran

https://dozenal.org/drupal/sites_bck/default/files/pitmansvg_treisaran.zip

UncialClock Deluxe

UncialClock Deluxe

Utility

A Java program displaying three types of dozenal clock, analog and digital.

John Kodegadulo

Download from Sourceforge

ZCalculator

ZCalculator

Utility

Excellent graphical dozenal calculator with a fairly complete set of functions

Michael Punter

https://dozenal.org/drupal/sites_bck/default/files/ZCalculator.exe

Dozenal Clock App for Android

Dozenal Clock

Utility

A simple dozenal clock app, keeping time in hours and biciaHours

Donald Goodman

https://f-droid.org/en/packages/com.example.dozenalclock/

DozenCalc: A Dozenal Calculator App for Android

Dozencalc

Utility

A full-featured dozenal calculator, with both basic and scientific modes.

Donald Goodman

https://f-droid.org/en/packages/com.example.dozencalc/