Engin 101: Inlab 9

Due Thur/Friday March 17 or 18 at the start of lab
Download the file "inlab9.cc". You are to do the following tasks:
  1. Read the code and become familiar with it.
  2. Write the missing member functions.
  3. Add a member function "add". The function add is to take another "angle" (instance of the class angle) as an argument and return a result of type angle. The resulting angle must remain in the legal range specfied in the code.