Basic Scheme Features

We'll go briefly through some of the basic features of Scheme, giving little code examples for clarity.

• Expressions: Code consists of expressions
• Booleans: The boolean values #t and #f
• Other Control-Flow Constructs: cond, and, and or
• Comments: Comments run from a semicolon to the end of a line
• Parentheses and Indenting: A note about parentheses and indenting
• All Values are Pointers: All values are conceptually pointers
• Automatic Memory Management: Scheme reclaims memory automatically
• Dynamic Typing: Objects have types, variables don't
• The Empty List: The empty list object (), a.k.a. the null pointer