Simple Math Calculator - This is for my Mobile Application Development Course at NSCC Institute of Technology

(turn out... it wasn't very simple, mostly cause I want it to work like a real calculator)

Sept 28, 2017 fixed 1 + 1 x 3. it can now do contiunously calculation.

Sept 26, 2017 everything works.... kind of except the following

• can't do 1 + 1 x 3 and etc
• can't put negative back to positive, if user press +/- the second time
• backspace works, but unless it's fully empty... it will crash.

Suggestion and feedback are welcome. Ed Ma