Some variations of the Fibonacci function

• fibfor.py - fib with definite loop and simultaneous assignment
• fibtab.py - a table version of fib
• fibfun.py - fib using a separate function
• fibrec.py - a recursive fib function - simple and slick (but inefficient)!

Definite Loops - Ch 8.1, Review

• A for loop that has a definite ending
• average1.py
• fibfor.py

While Loops - Ch 8.2

• Indefinite loop because a boolean test is used to exit the loop
• average2.py
• zeno.py

Interactive loops - Ch 8.3

• average3.py - while loop with sentinal
• average4.py - while loop with EOF sentinal
• average4a.py - add exception handling
• average6.py - sentinal loop on EOF for walking through a file

Breaking out of loops - Ch 8.5

• isPrime.py - breaking out of a loop with a return
• breaking out of a loop with a break
• post test loop

Boolean Algebra - Ch 8.4

• True, False values
• Comparison Operators return Boolean values (> >= < <= == !=)
• Boolean operators: and, or, not
• Precedence of boolean operators (p248)
• Boolean expressions using comparisons and boolean operators
• Some laws of Boolean algebra (p250)
• Watch-out-for(p255): - use while response[0] == 'y' or response[0] == 'Y'
• Tricks: (p255-56) some Python bool conversions of values.
• Tricks: Short-circuit operators (p256-57).

Homework programs - tips

• Ch8p1
• Ch8p3 to Ch8p7