Chapter 1: Computer Science and Programming

• Computational Processes
• Questions To Ask About Computational Processes
• The Scheme Programming Language
• Scheme's Read-Eval-Print Loop
• Numeric Expressions
• Non-numeric Expressions
• Applications
• Format of Applications
• Naming Things
• Definitions
• Procedures
• Lambda Expressions
• Naming Your Own Procedures
• Argument Order Matters
• Another Example
• The Substitution Model of Evaluation
• Conditional Evaluation
• A Procedure for Calculating Tax
• Nested Conditional Expressions
• An Application: Quilting
• How to Make Images: Grids
• How to Make Images: filled-triangle
• How to Make Images: overlay
• Manipulating Images: stack
• Manipulating Images: quarter-turn-right