Mechanical Switch Sci-Calc Is Also A Macropad

Smartphones have replaced a desktop calculator for most folks these days, but sometimes that tactility is just what you need to get the mathematical juices flowing. Why not spruce up the scientific…

Reverse Time Back To The Days Of RPN

While Texas Instruments maintains dominance in the calculator market (especially graphing calculators), there was a time when this wasn’t the case. HP famously built the first portable scient…

Walnut Case Sets This Custom Arduino-Powered RPN Calculator Apart From The Crowd

How many of us have an everyday tool that’s truly unique? Likely not many of us; take a look around your desk and turn out your pockets, but more often than not, what you’ll find is tha…

An Open-source Scientific RPN Calculator

Why reach for a bland, commercially available calculator when you be using a model that employs RPN (Reverse Polish Notation) in its calculations and be a custom build all at the same time? The kid…