calculator

------------------- Run The Application --------------------

1. open cmd at your working dir and use: git clone https://github.com/benshriki/calculator.git
2. open calc.sln using Visual Studio and make sure you have .net packge installed.
3. use run button.

---------------------- Add Operators -----------------------

1. create an oparator class that implements ICalc interface.
2. add the file you have created to calc/operators dir.