Home News Orpie: A command-line reverse Polish notation calculator By Peter Faller January 25, 2019 Orpie is a scientific calculator that functions much like early, well-loved HP calculators. Complete Story Facebook Twitter Linkedin Email Print Previous articleHow did you get started with Linux? Next articleOpen edX and OpenStack for complex learning environments Get the Free Newsletter! Subscribe to Developer Insider for top news, trends, & analysis Email Address By subscribing, you agree to our Terms of Use and Privacy Policy. Subscribe Must Read Blog How to Install OpenProject on Ubuntu 22.04 Developer How to Install Odoo 17 on Ubuntu 24.04 News Arch Linux Installer Archinstall 2.8 Increase ESP Size to 1 GiB, Fixes More Bugs News Ardour 8.6 DAW Targets Stability with Critical Bug Fixes News LXQt 2.0 Desktop Environment Officially Released, This Is What’s New