Chapter 3

Question 1

4 properties of decrementing function

Answer 1

1. maps a set of program variables into an integer 2.when the loop is entered its value is nonnegative 3. when its value is <=0 , the loop terminates 4. its value s decreased everytime through the loop

Question 2

exhaustive enumeration

Answer 2

enumerates all possibilities until the answer is found or all possible solutions are exhausted

Question 3

for loop syntax

Answer 3

for < identifier> in :

Question 4

for loop

Answer 4

identifier bound to first value in sequence –execute code block– then identifier bound to next in sequence –until sequence completed or break

Question 5

range function

Answer 5

range(start, stop, stepsize)