Outline for October 18, 2022

Reading:§4.9
Assignment: Homework 2, due October 20, 2022

1. Lists as parameters: can change list elements in function and they are changed in caller [args2.py]

2. More on parameters: named arguments and variable number of arguments [args3.py]

3. isinstance(obj,type) function
   1. type is bool, float, int, list, str, tuple

4. Recursion
   1. n factorial [nfact.py]

5. Thinking recursively [recfun.py]
   1. First: think of the recursive case (write the problem in terms of something involving a smaller instance of the problem)
   2. Next: think of base case (when to stop)
   3. Example: Find the length of a string
   4. Example: Does the string only have alphabetic characters in it?
   5. Example: Find the maximum element of a list
   6. Example: Construct a string from a list of strings
   7. Example: Reverse a string

6. Recursion
   1. Palindromes [palindrome.py]
   2. Fibonacci numbers [rfib.py]
   3. Tower of Hanoi [hanoi.py]

Matt Bishop Office: 2209 Watershed Sciences Phone: +1 (530) 752-8060 Email: [email protected]

MHI 289I, Programming in Health Informatics Version of October 18, 2022 at 7:28PM

You can also obtain a PDF version of this.