CSC 151.01, Class 22: Naming local procedures

Overview

• Preliminaries
  • Notes and news
  • Upcoming work
  • Extra credit
  • Friday PSA
  • Questions
• Quiz
• Lab
• Debrief

News / Etc.

• Have a wonderful fall break.

Upcoming Work

• Writeup for class 21 due TONIGHT at 10:30 p.m.
  • Exercise 5
  • To: csc151-01-grader@grinnell.edu
  • Subject: CSC 151.01 Writeup 21 (YOUR NAMES)
• Writeup for class 22 due TONIGHT at 10:30 p.m.
  • Exercise 2
  • To: csc151-01-grader@grinnell.edu
  • Subject: CSC 151.01 Writeup 22 (YOUR NAMES)

Extra credit (Academic/Artistic)

Extra credit (Peer)

Extra credit (Misc)

Other good things

• Have a wonderful fall break

Friday PSA

• You deserve a break.
• Please stay healthy.
• Be moderate.
• Encourage moderation in others.
• Consent is absolutely, positively, necessary.

Questions

Quiz

Lab

Writeup: Exercise 2.

Debrief

Note: When there’s a sample answer, you should still try the problem first. What do you learn from copy and paste?

Make tables, particularly for exercise 4.

    tally           remaining
    -----           ---------
    0               '(7 2 1 5 8 3)
    1               '(2 1 5 8 3)
    1               '(1 5 8 3)
    2               '(5 8 3)

Note: '(...) means treat the following as a list and DO NOT EVALUATE THE INDIVIDUAL ELEMENTS. So '(3 4 (sqrt 2)) is a list whose third element is the list '(sqrt 2).

Note: You wrote all-real?, or something similar on Monday. It shouldn’t be complicated. But it’s NOT (map and (map real? lst)).