RPN calculator

Invalid date

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.