Below please find links to archived Q&A discussion for the Functions, Part I course.
Exercise 1.1: Introducing Functions
Exercise 1.2: String Functions I
Exercise 1.3: String Functions II
Exercise 1.4: Math Functions I
Exercise 1.5: Math Functions II
Exercise 1.6: Array Functions I
Exercise 1.7: Array Functions II
Exercise 1.8: Show What You Know!