Try Calculator++, a multipurpose calculator app with slick and intuitive user interface.
Access additional features from the main screen of the app using gestures. For example, to use Ã?Â«%Ã?Â» slide button Ã?Â«/Ã?Â» up. You don't need to press Ã?Â«=Ã?Â» anymore - result is calculated automatically. Copy/paste with a single button press. App supports both portrait and landscape screen orientations.
C++ has two layouts: standard and engineer. Choose one which suits you best either from the initial wizard or from the application settings
Set theme you like
Add home screen widget
Do calculations without switching between the apps! Calculator++ can work in a separate window floating over other applications on your phone
Calculate percentages, square roots, powers, trigonometric functions.
Calculator has a big variety of built-in functions and supports adding new user-defined functions.