v1.2

added functions:
Defining
Parameters
Overloading
Deafault parameters (in function call)

v1.1

1.1:
added a selection variety of arithmetic operators, a switch to control the selection and a do while loop around it to give repeatability to the user.

Full Changelog: primitive_types...control_structures

Stage 1.0

basic: primitive types and operators

Full Changelog: https://github.com/trajil/roadmap-project/commits/operators