Scientific/engineering firmware repurposing HP business calculators!
Just a few scripts for pocket calculators.
User-Code Utility for HP-41 Calculator
An HP RPN calculator with interval output
Files for HP calculators
The classic RPL programming language reimplemented and reimagined.
Financial Calculator
Keep track of all your monsters during your encounters in a simple way
a reverse Polish notation multi-precision pocket calculator software
A functional HP-style command-line RPN scientific calculator
A lightweight java damage reduction and effective hp calculator.
RPN calculator running on Windows and Linux
Python for calculators