RPN calculator

RPN calculator


RPN is a four function calculator designed to replace the standard Android calculator. It features large buttons designed for easy touchscreen use. It operates using Reverse Polish Notation, uses high accuracy decimal arithmetic internally, and has a fixed point scrollable display.

The code is open source and available at https://github.com/lpar/RPN

Found a bug? E-mail [email protected]

Recent changes:
2.0.4 fixes a crash and allows raise to fractional powers.

2.0.3 tweaks font sizes when system font size is "Huge", to avoid a layout glitch.

2.0.2 fixes visual glitching on Galaxy Nexus running Jelly Bean (Android 4.1).

Version 2.0 added a redesigned Holo UI and requires Android 4 (Ice Cream Sandwich). It also added a square root function. Version 1.x is still available for older phones.
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Free
85
4.3
User ratings
160
Installs
10,000+
Concerns
0
File size
114 kb
Screenshots
Screenshot of RPN calculator Screenshot of RPN calculator
About RPN calculator
RPN is a four function calculator designed to replace the standard Android calculator. It features large buttons designed for easy touchscreen use. It operates using Reverse Polish Notation, uses high accuracy decimal arithmetic internally, and has a fixed point scrollable display.

The code is open source and available at https://github.com/lpar/RPN

Found a bug? E-mail [email protected]

Recent changes:
2.0.4 fixes a crash and allows raise to fractional powers.

2.0.3 tweaks font sizes when system font size is "Huge", to avoid a layout glitch.

2.0.2 fixes visual glitching on Galaxy Nexus running Jelly Bean (Android 4.1).

Version 2.0 added a redesigned Holo UI and requires Android 4 (Ice Cream Sandwich). It also added a square root function. Version 1.x is still available for older phones.

Android Market Comments
A Google User
Aug 3, 2015
Installed it, loved it. Read on your web site about why RPN and why a simple calculator and I can just say "me too!". I used to have an HP48 emulator installed, which I loved until I hit the wrong (small) key, or the emulator itself hung (specially when this happened in front of a non-initiated friend who wondered what the hell I was doing with such a calculator). If only you could add two things to aim for "6 stars". I wish I could navigate up/down the stack, not just swap/drop (Maybe just tapping a line on the stack could copy it to the bottom). And I'm also not crazy about the icon; I think it does not fit well with the dark, simple style of the app. But then again, taste is subjective.
A Google User
Jul 17, 2015
Simple and elegant This is just such a nice straightforward simple everyday calculator!
A Google User
Jun 2, 2015
Trig functions? Did I miss something? Where are the trig functions?
A Google User
Mar 21, 2015
Simple, beautiful, efficient I love the design! Very simple calculator almost perfect at what it does. Only thing: PLEASE move the enter button to the right side.
A Google User
Mar 3, 2015
Simple. Does all the things I need.