RPN Calculator av Mike Conca

3.3 (8 reviews)

31 brukarar

Du treng Firefox for å bruke denne utvidinga

Last ned Firefox og få utvidinga

Last ned fil

Om denne utvidinga

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.

Utviklarkommentarar

Known Issues:
1) Calculator doesn't automatically get focus when displayed.
2) Keyboard only. Clicking on keys and commands doesn't work.
3) Stack history is lost when the calculator is closed.

Note:
Original code is from RPNCalc
Copyright 2011, Christophe Juniet

Vurdert 3,3 av 8 meldarar