2.2: Fixed a bug which was preventing the digits from displaying for some languages.
2.1: Updated to target Android SDK 35.
1.8: Improvements to RPN mode.
1.7: Added a Reverse Polish Notation (RPN) mode which can be selected on the settings page.
1.6: Allow entry of numbers starting with a leading decimal point.
1.5: Correctly handle the decimal and group separators used in different locales.
1.4: Make function buttons smaller than number buttons.
1.3: Make buttons look more 3D. Bug fixes.