References

Within these castle walls be forged Mavens of Computer Science ...

— Merlin, The Coder

NOTE: codermerlin.com has been deprecated and replaced by codermerlin.academy. Please update your bookmarks.

Recommended Videos

• Angela Lee Duckworth: Grit: The power of passion and perseverance
• Sir Ken Robinson: Do schools kill creativity?

Linux and Bash

1. Bash Guide
2. Bash Basics
3. Bash Tutorial (PDF)
4. Linux Disk Space Management
5. Unix Tutorial
6. Coder Merlin File Recovery
7. Find Text in File Recursively
8. Advanced Topics
   1. Service Installation

Colors

1. Color Wheel
2. W3 CSS Colors

Computer Science

• Computer Science I Textbook (by Bourke)
• Computer Science II Textbook (by Bourke)
• Computer Science III Textbook (by Bourke)
• Algorithms
  • Objects
    • Computer Science I Textbook (by Bourke) Chapter 10. Encapsulation & Objects
    • Presentation on Objects
  • Scope
    • Scope (Wikipedia)
    • Computer Science I Textbook (by Bourke) Chapter 2.2.4. Scoping
  • Sorting
    • Bubble Sort (Geeks For Geeks)
    • Insertion Sort (Geeks For Geeks)
    • Merge Sort (Geeks For Geeks)
    • Quicksort (InterviewBit)
    • Quick Sort (Lomuto’s Partitioning Scheme) (Geeks For Geeks)
    • Selection Sort (Geeks For Geeks)
• Best Coding Practices
• Program Design
  • How to Design Programs

Git

1. Introductory Tutorial to Git (Video)
2. Brief Introduction and Tutorial
3. Official Documentation
   1. What is Version Control (Single page)
   2. Getting Started - Git Basics (Single page)
   3. Git Basics (Entire chapter)
4. Useful Commits - Message Style

GitHub

1. Brief Introduction and Tutorial
2. Basic Formatting Syntax (for README.md)
3. Markdown Magic - Tutorial
4. Online README.md Editor

Emacs

1. Beginner's Guide
2. Emacs Tour
3. Reference Card
4. How-Tos
   1. How To Copy From One File To Another
5. Version Control Within Emacs
6. Magit Version Control Within Emacs
7. Butterflies
8. Pragmatic Emacs

Emergence

1. Emergence

Engineering Design Process

1. NC State University Perspective
2. NASA Perspective for Educators

Graphics

1. Turtle-Graphics
   1. Turtle History
   2. Turtle Command Background
   3. Detailed Turtle Graphics Analysis
2. HTML5 Canvas
   1. ArcTo Visual Description
   2. Canvas Handbook
3. Igis
   1. Lines
   2. Ellipses
4. Bezier Curves
   1. Animated Bezier
   2. Online Book (Detailed)
5. Rectangles
   1. Intersecting Rectangle Visual
6. Hit Testing
   1. Rectangle Overview
   2. 2D Hit Testing
   3. Hexagon Hit Testing
7. Platform Games
   1. Platform Game
8. Transforms
   1. Transformation Matrices
   2. Linear Transformations
   3. Transformation Tutorial (Jenkov)
   4. Transformations

Programming Languages and Concepts

• StackOverflow Q&A site for professional and enthusiast programmers

Assembly Language

• x86 Assembly, 64 bit (from the University of Virginia)
• The 64 bit x86 C Calling Convention (from the University of Virginia)
• x86-64 Machine-Level Programming (from Carnegie Mellon University)
• x86 Assembly Language Guide (from the University of Virginia)

HTML, CSS, JavaScript

• W3Schools provides tutorials about HTML, CSS, JavaScript, PHP, Python, and SQL
• Tutorials Point provides tutorials about HTML, CSS, and Swift
• HTMLColorCodes easily find HTML color codes with a color picker, color chart and HTML color names with Hex color codes, RGB and HSL values.
• JSFiddle is a test site for HTML, CSS, and JavaScript

Swift

• Swift Language Guide
• Style Guide (Google)
• About Swift Functions
• Helpful blogs
  • Swift by Sundell
  • Deep Dive into Swift Frameworks
  • Swift Package Manager
• Swift in the News
  • Swift for Tensor Flow
  • Cognitive Class - AI for Games

Object Oriented Programming

• Inheritance vs. Composition (Steven Lowe)

AP Computer Science A Exam

• Java Subset

Quotes and Advice

• About Mistakes
• About Time
• About Never

Glossary

• Glossary

Tools

Art

• Piskel is a free, online editor for animated sprites & pixel art
• Pixilart is a free, online editor for pixel art, game sprites and animated GIFs

Communication

• Discord is an all-in-one voice and text chat that's free, secure, and works on both your desktop and phone.

Diagrams

• Draw IO is a free, online editor for diagrams (such as UML)

Logic Gates

• Circuits
• Logic Gates

Regular Expressions

• RegExr is a free, online site to test regular expressions (regex)
• Cyrilex is a free online regular expression tester and visualizer
• Word Games on the Linux Command Line Using Linux to Solve Wordle

Source Control and Hosting

• GitHub provides an online source code repository (which integrates with git) along with additional tools
• GitLab provides an online source code repository (which integrates with git) along with additional tools
• Heroku is a platform as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud.

Teacher Resources

• CAS UK UK Computing at School
• Explorable Explanations (Bret Victor)

Articles on Privacy

• NSO Malware Can Spy on Apple, Google, and Other Cloud Data Report (CNBC)

Wiki Tools

• Convert Excel to WikiTable