Seal of the DSA
Dozenal Society of America
Promoting base twelve and alternative base mathematics
Support the DSA
Follow Us
Icon for DSA's Twitter Icon for DSA's Facebook Icon for DSA's RSS
Share This Page
Icon for sharing via Twitter Icon for sharing via Facebook Icon for sharing via email
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.


Name: ZCalculator
Type: utility
Summary: Excellent graphical dozenal calculator with a fairly complete set of functions
Author: Michael Punter
Nature: Download

A fine, visual calculator which works in both dozenal and decimal. Using "A" for ten and "B" for eleven, this calculator includes the basic trigonometric and logarithmic functions, some rudimentary memory functions, and of course the basic functions. It further includes exponential notation and buttons for certain constants (like π). Finally, it allows angular functions to be done using the traditional degree system (260 (360 decimal) degrees to the circle); the radian system; the circle divided into one dozen parts; or the TGM unciaPi system (the semicircle divided into a dozen parts).

Designed to run in Windows, it also runs quite nicely under Unix-like systems using wine.

You can also download it with its C++ source.