Are you looking for an efficient and easy-to-use calculator?
Do you want to solve both simple and complex problems?
Try Calculator++, a multipurpose calculator app with slick and intuitive user interface!★ Save your time!
• Access additional features from the main screen of the app using gestures. For example, to use «%» slide button «/» up
• You don't need to press «=» anymore - result is calculated automatically
• Copy/paste with a single button press
• App supports both portrait and landscape screen orientations★ Personalize!
• 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★ Plot 2D and 3D graphs!
Several functions can be plotted simultaneously★ Use powerful mathematical capabilities of the app:
• Do calculations with variables and constants
• Use built-in functions or add your own
• Integrate and differentiate
• Do calculations with fractions and simplify expressions
• Do calculations with complex numbersThe app supports devices with Android version 2.2 and higher and is open source. The app contains adverts which are shown on the secondary screens. To remove them please purchase a special option from the application settings.Calculator++ on Facebook: http://facebook.com/calculatorpp
Calculator++ on Vkontakte: http://vk.com/calculatorpp

// Option A //

To download Calculator ++ mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Calculator ++ mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Calculator ++ from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Calculator ++ in HappyMod App.