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A simple touch-friendly RPN calculator with accurate decimal arithmetic.

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]

What's New in the Latest Version 2.0.4

Last updated on Oct 23, 2015 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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