Problem Set 10  Due Wed Apr 27 at 23:00
Reading
 Slides and notebooks from Lec 21 (Intro to Recursion) and to some degree from Lec 22 (Turtle Recursion).
 Problems and solutions from Lab 11 (Recursion).
 Think Python, Ch. 5, Sections 5.8–5.10 on recursion; Think Python, Ch. 6, Sections 6.5–6.9 on fruitful recursion might also be useful although this week we are not doing any fruitful recursive functions.
Tasks
The instructions for each task:

Task 1: Recursion Drills — A series of problems from simple to mediumcomplex designed to help you practice writing recursive functions. Does not include branching or fruitful recursion. This is an individual task.

Task 2: Recursive Circles — Create the similar concentric circles to the earlier circles task, using recursion instead of loops. You may complete EITHER this task or the recursive scales task, but you don't have to complete both. For this problem, having a partner is optional but recommended.
 Task 3: Recursive Scales — Create similar musical scales to the earlier scales task, using recursion instead of loops. You may complete EITHER this task or the recursive circles task, but you don't have to complete both. For this problem, having a partner is optional but recommended.
About this Problem Set
This problem set will give you practice with basic recursion, without needing fruitful recursion.
If you want to find a partner to work with for this problem set, use this Google Sheet to do so.
Reminders
 Remember to download the starter code for each task from the Potluck server.
 You can also use the server to take a 24hour extension on this problem set if you need to.
 You should check the rubric for each task before you submit. The second and third tasks are alternates: you must complete one or the other, but you do not have to complete both. You must complete the first task (which is an individual task).
Time Estimate
Our pertask estimate for this pset is 24 hours, and our estimate for total time spent across all tasks is 5–8 hours, plus up to an hour of reading.
How to turn in this Problem Set

Upload your tasks via the Potluck server by the deadline (Wed Apr 27 at 23:00).
 For recursionDrills, submit
recursionDrills.py
.  For recursiveCircles, each team member must submit
recursiveCircles.py
.  For recursiveScales, each team member must submit
recursiveScales.py
.
 For recursionDrills, submit

Doublecheck the status of your submitted tasks, since there may be warnings.

Reminder: you can submit as many times as you like, and only the most recent submission will count for your grade.

If you run into trouble with the submissions server, contact Prof. Mawhorter, and include a copy of the file(s) you were trying to submit.
 After the deadline, check your score for each task and submit revisions if you need to.