This extension adds a convenient reverse Polish notation (RPN) calculator as a browser action button. Also called postfix, RPN calculators take their operators after the operands.
For example, to get the sum of two and three on a normal calculator, you would hit "2 + 3 =". On an RPN calculator, you would hit "2 Enter 3 +". In general, RPN calculators require fewer keystrokes over a series of extended operations.
It may seem strange at first, but once you get used to it, you'll never go back. HP made a series of extremely popular RPN calculators back in the 1970's and 1980's.

- License: Mozilla Public License 2.0
- Weekly downloads: 1
- Average daily users: 40
- Rating: 3.25/5 of 8 ratings
- Created: 2017-09-26 20:41:47
- Last updated: 2017-10-06 22:22:12
- Homepage: https://github.com/mconca/rpn-web-ext
- Support site and email
- Orig: https://addons.mozilla.org/en-US/firefox/addon/rpn-calculator/
- API: {13e55a13-d3a7-4703-acf0-ccfad11f30b8}