Calcu is a Calculator Application for the android devices with a beautiful interface and customization options.
Keyboard Layout is customizable – this help you to set the keyboard according to your needs.
Two keyboard Layouts – swiping the keypad will show the advanced operators.
You can share your calculation result with others if needed
Themes – it have 12 themes available as of now
You can get this application from the play store if you want
Via – XDA