Learning Outcome

At the end of this lesson, you will be able to:

• understand and use For ... range() loop

Movie Watching

• watch "Play Value, SEGA Vs. Nintendo"

Review

• review While loops

Lesson

• go over "For ... range()" loop
  • this is good when you know in advance (even in a variable) how many times you will go through
  • you do not keep track of the counter, the structure does for you

Activity

• read over page 49 -> Factorial, Chapter 3
  • Computer Based Problem Solving

#!/usr/bin/python

for num in range(10,20):  #to iterate between 10 to 19

for i in range(10): #to iterate on the number 0 to 9

>>> range(10)

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Daily Assignment

• redo the "Factorial" program
  • see example in textbook (pg. 49)
  • BUT do it with a For ... loop
    • for loopCounter in someRange

{

...

}

Extra

• work on the weekly assignment

Homework!

• read over looping structures, Chapter 3
  • Computer Based Problem Solving