CS 200 - Fall 2023. 11/08/2023.

Welcome to CS 200!

Video of the day

SQL Socratica.

I hereby solicit suggestions for the video of the day. Please email me your ideas with explanations. Selected entries will win 5 homework points. If your video is played at the beginning of class, you must also briefly explain something about the video and something about yourself - in person.

Logical Problem of the day

The 1975 edition of the American Heritage Dictionary contains a definition of the word "anticlimax" (or "bathos"). What do the editors provide as an example?

https://pollev.com/slade You may also download the app to your phone. Use the "slade" poll id.

Lecture 19: Midterm Review.

Administrivia

I have Office hours via zoom, meeting ID 459 434 2854. Wednesday 4-6pm.

ULA office hours posted on csofficehours.org. See the posting on Ed Discussions for more information.

Homework assignments: [Assignments]. hw6 is available. hw5 extension to Monday November 13th. You will submit with gradescope.

Book recommendations: You are not expected to understand this Online copy from the Yale Library. Tells lots of stories about computer science. Very easy to read.

The Ethics of AI, by Luciano Floridi. See online book at Yale.

Kollected Kode Vicious, George Neville-Neil. Inciteful and practical programming advice, from column in CACM. (George is now a PhD student in Yale CS Department.)

Midterm Exam II: Thursday November 9th, 7pm

Midterm exam Thursday November 9th, 7pm, WLH 207. As with the first midterm, the accessibility exam room will be WLH 211.

The second midterm will similar to the first. You will have 2 hours. Here is a sample midterm exam. (solutions) There will also be a question on data structures. For decorators, there will be a wraps question.

There will be a UNIX question, as in the first midterm. Here is a sample UNIX transcript (solutions) UNIX will cover through principle 4.

The CS 201 midterm review slides cover UNIX.

Practice decorator question: write a decorator retry() that repeatedly calls the decorated function as long as it raises an exception.

@retry
def roll_sixes():
   number = random.randint(1,6)
   if number != 6:
     raise ValueError(number)
   return number

See retry.py

Decorators.html

Exceptions.html

PVM.html

UNIX Introduction Principles 3 and 4.

Databases and SQL

SQL notebook

Getting to know UNIX

UNIX Introduction Principle 6.

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