I take that back

This is the last commit tonight/today I will be making.  Mistakes happen at 2:00 much more than if I was awake.  There is already statements for if the user enters a non-number statement, such as "pie".  Better yet, they are customized so you don't have to give them errors more than necessary!  I also added some descriptions of what the code is doing where.
Merge pull request #40 from KingofGamesYami/patch-1

I take that back