CSC 151.01, Class 35: Geometric Art Through Numeric Recursion

Overview

• Preliminaries
  • Notes and news
  • Upcoming work
  • Extra credit
  • Questions
• Lab
• HW 7

News / Etc.

• New Partners.
• I have fixed the brush size problem. Before starting DrRacket and Gimp, open a terminal window and type /home/rebelsky/bin/csc151-update.

Rotating reminders

• Visit mentor sessions! We have mentor sessions on Thursday evenings from 7:00-8:00 and 8:00-9:00 p.m. in the CS Commons. Sessions will include sample quizzes.
• Visit review sessions! I run review sessions on Thursdays at 9am in this room.

Friday Quiz Topics

• Turtles
• Iteration
• Local recursive procedure bindings with letrec and named let.

Upcoming Work

• Lab writeup: 1f
• Homework 7 is almost ready.
  • You can choose your own partners and work in groups of size 1, 2, or 3.
  • We will discuss the assignment at the end of class. (I had fun computer problems this morning.)
• Reading for Friday: Random (unpredictable) drawing

Extra credit (Academic/Artistic)

• Tonight at 7:30 p.m.: Tilly Woodward’s Time and the Beauty of Small Things.
• (No CS extras this week.)

Extra credit (Peer)

• Baseball games Saturday at 1pm and 3:30 pm vs. Monmouth (if it ever stops raining)
• Track and Field Saturday at Cornell at 11 am.
• Listen to the sound at the Friday Gardner concerts at 8-10pm
• Be amazaed at the trumpet playing at Harris on Saturday.
  Remember: Grinding without permission is sexual assault.
• Singers concert Saturday at 2pm in Sea Bring Lou Us.
• Green living, Saturday, 1-4pm, Summer Street Park (follow the train tracks south, but make sure you get far off of the tracks if there is a train nearby)
• Watch Pie on ear weekend pitches. Some time on Sunday. PK will provide more info on Friday.

Extra credit (Misc)

• Krumm Prairie burn Friday night.
• Donate during Scarlet and Give Back day.
  • Since I know that even a small donation is a challenge to many of you, I will reimburse you up to $5.
  • Remember that you can specify a recipient, such as the CS department, the Equestrian club, the South Asian club, the Baseball team, Women’s soccer, Punclub, or whatever.
  • To receive credit, you still have to write a reflective paragraph on your experience of donating.
  • I realize that receiving credit may undermine some of your own views on good works. You need not get credit for giving if you don’t want to.

Good things to do

• Women’s Tennis Saturday at 10:00 am

Questions

Can I find out how much extra credit I have?

Yes. I should be sending out grade reports soon.

Lab

Writeup: 1f

Note: When you write a recursive procedure, the recursive procedure should call itself, not some other previously-defined recursive procedure.