Dozenal RPN Calculator

Unum Designum

About this app

The twelve number is mathematically Highly Composite, Panarithmic, Niven, Oblong, Pell and Sublime.

Dozecal is an educational RPN calculator to promote the use of Base Twelve in math and science.

The usual math functions are available in both DUODECIMAL and DECIMAL modes.

Conversion is automatically made when switching from one mode to the other one.

Trigonometric operations uses DEGREE as unit of measure.

Disclaimer: results and precision may occasionally be incorrect. Should you report them at [e-mail], and the author will be happy to fix !

Ratings and reviews

Doesn't work like other RPN calculators I've used. Once you get an answer, entering a new number does not push the result back onto the stack. I'm used to doing this: "5 enter 3 x 2 +" to get 17. But on this one I have to do "5 enter 3 x enter 2 +". That extra enter is annoying not just because it slows you down, but forces you to reach all the way across to the far side of the phone.

This is great! I'd give it five stars if I could figure out how to copy the result, and if there were integrated documentation about what all the buttons do (it could be a tooltip/toast notification when long pressing each button). Aside from that, I'd love to be able to replace the pi button with a tau (2pi) button, choose my own characters for ten and eleven, and maybe use custom degrees or radians instead of the 360 degree model but I don't really know what to expect there.

This is the best dozenal calculator available in my opinion. It's a little tricky to understand at first because most people aren't used to Reverse Polish Notation (hence the reviews incorrectly stating that the app doesn't work), but once you get the hang of it it's just fine. A couple things that I would like to see differently would be a tau button instead of/in addition to the pi button and a mode that allows for using trig functions with both radians and turns (or fractions thereof).

What’s new

Layout change to be usefull on the external screen of flip type devices