Outline for May 18, 2007

1. Greetings and felicitations!
2. Variables
   1. What is a variable
   2. How number = number / 2 works
   3. How a sequence of number = number / 2 works
3. Comparison: if statement
4. Function: more comparison
5. Strings
   1. Comparing them
   2. Transforming them: upper, lower, swapping case, replacing letters
6. Conversions
   1. str, int, float
   2. Errors
7. Conversions
   1. str, int, float
   2. Errors
8. Example program: rolling a 20-sided die repeatedly