rpnc

Fri, 20 Mar 2026 12:46:54 -0400

What is it? Link to heading

rpnc is a calculator for your terminal that uses reverse polish notation (RPN), which is inspired by my Hewlett Packard model 28S advanced scientific calculator, and written in pure Go.

Here’s a little demo of how one could calculate $\frac{543}{(123+74)^2}$ using rpnc:

The result is printed onto the terminal once you exit the program.

You can read up on how RPN works more in depth in this post, but in simple terms, it’s a way to write mathematical expressions without the need for parentheses.

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rpnc

What is it? Link to heading