extension ExtPose

RPN Calculator

CRX id


Description from extension meta

Adds an RPN calculator as a browser action button.

Image from store RPN Calculator
Description from store 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 Known Issues: 1) Calculator doesn't automatically get focus when displayed. 2) Keyboard only. Clicking on keys and commands doesn't work.

Latest reviews

  • (2021-07-30) Jared M Johnson: Great calculator, just wish I could copy/paste the input/output.

Latest issues

  • (2018-04-09, v:1.0) Ray Nulod: Moving calculator location
    Hello, I tried looking at the documentation, thank you for the code but I don't understand the language. Is there any way to move the calculator screen location so it doesn't block numbers you want to work with? I guess I could split the calculator off into it's own window and then force a split screen but I was hoping there'd be a built in way. Thank you. Ray
  • (2018-01-30, v:1.0) Michael Barnett: Clipboard interaction?
    Is there a way to copy a value between the calculator and the clipboard?


695 history
5.0 (6 votes)
Last update / version
2017-10-04 / 1.0
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