Scientific/engineering firmware repurposing HP business calculators!
The classic RPL programming language reimplemented and reimagined.
A graphing calculator that's both powerful and easy to use.
engineering programmable calculator
Programmable Calculator (IP functions, create user functions)
Programmable graphical scientific calculator
The functional model of the old calculator series Wang 700 and 15VSM
Interval Calculator for Engineer
Circuit simulators like SPICE for low memory computers
Convert between calendars and work with date ranges.
Console remake of old "Lunolet" game.
RPN calculator running on Windows and Linux