Intermediate CS

Overview

Intermediate Computer Science uses the DrRacket environment and the Picturing Programs textbook. Use WeScheme if you cannot install programs, but read the notes on WeScheme because it is different in some ways.

Eventually you will want to understand why we learn Racket instead of a more popular language like Python.

Extra Info: Online Course

The Racket MOOC is a good place to look if you want more detail.


1. Introduction

3. Images

6. Animations I

Big-bang for animations. Essential information and walkthroughs.

7. Numbers

Numerical functions, including gradients.

8. Number Models

Animations that remember a number instead of an image.

13. Booleans

True or false values. Comparison functions.

14. Booleans II

15. Conditionals

Making choices in Racket using ‘cond’.

17. Cond Animations

Use of conditionals in animations.

Sem.I Review

Review through Chapter 17. End of Semester I.

20. Using Structures

Remembering or returning more than one thing. For example, coordinates.

21. Structures

More than one piece of information in one variable, generalizing posn and color.

22a. Recursion

Recursion lets you solve a problem by solving simpler problems.

22b. Lists

Lists give a way to remember an unlimited number of items.

24. Universe

Make multi-player, multi-computer games in Racket.

Projects

Larger projects with specifications.

Sem.II Review

Typed Racket

A version of Racket that enforces signatures. Helps transition to strongly typed languages like Java.

Resources

General resources for Intermediate CS.

Pro Features

Brief descriptions of advanced topics that have come up in various individual projects.

Online Help

Last modified August 29, 2021: Clean up web site. (ae6941f)