this application lets you write mathematical expressions and does show you the result of the calculation.
Swipe up/down on text-screen to scroll when the calculation goes over 1 screen.
Swipe left to change pages and enter mathematical expression.
press = to calculate and see the result.
Swipe down to delete last character.
Swipe up to restore last calculated result.
Press on C to clear the screen.
Press on CE to delete only last line.
LiveWare™ extension for SmartWatch