Calculator - Beta
Removing boiler code and minimising code strcture. Implementing more abstract ways of performing calculations.
This calculator is built using Flutter. The implementation for the calculation is a stack data structure. The operation entered is converted from an infix form to a postfix form using Stacks and the result is calculated using the obtained postfix expression.
The code is pretty messy, but I hope to make it more efficient and smaller. I wish to compress this application's dart files down to 5KB and submit this for Flutter create challenge.