Erlang Mini Project #1

Distributed: 11/24/2015      DUE: 11/30/2015


1.  Write a function that takes a list of numbers and returns a list of numbers
that are the squares.  Use list comprehension.


2. Write a function that takes a list of tuples. The function returns a list
comprising only the first element of each tuple.


3. Write a function that takes a tuple of 4 elements. The function returns the
third element (just the element -- not in a tuple, not in a list).


4. Write a function that takes a GPA (a number).  Use a case statement.
If the parameter is less than 0 or greater than 4, return an error indication.
If the parameter is in the range [3.90, 4.00] output 'summa cum laude',
If the parameter is in the range [3.80, 3.90) output 'magna cum laude',
If the parameter is in the range [3.65, 3.80) output 'cum laude',
otherwise output 'no laude'.


5. Write a function that takes a 2-tuple of numbers. If the numbers are in
increasing order, return true. Otherwise false.  Use guards.
  

Turn in
  -- file containing all functions.
  -- screen shot showing functions successfully executing
                 showing functions failing on invalid input