Basic facts about *.lp file format:
  (1) A line beginning with a backslash (\) is treated as a comment
  (2) There are many types of optimization that you can do with
      Gurobi; in class we start with some simple examples

Examples of some commands of the "Gurobi shell":

-- Reading *.lp into Gurobi:

mylp = read('/Users/jf/MATH441/Gurobi_Run_Here/TV.lp')
mylp = read('TV.lp')
my_other_lp = read('TV2.lp')

-- To run Gurobi optimization software on "mylp" and get some info:

mylp.optimize()

-- To see the non-zero values of the decision variables:

mylp.printAttr('X')

-- To get the vector of all values, and then print the vector and
   its length:

vect = mylp.getVars()
print(vect)
print(len(vect))