Racket allows programmers to add new syntactic constructs in the same way that other languages permit the formulation of procedures, methods, or classes. All you need to do is formulate a simple …

Chapter 2 provides a brief introduction to Racket. From Chapter 3 on, this guide dives into details— covering much of the Racket toolbox, but leaving precise details to The Racket Reference and other …

Running raco docs (or Racket Documentation on Windows or Mac OS) may open a different page with local and user-specific documentation, including documentation for installed packages.

Racket uses parentheses to wrap larger expressions— almost any kind of expression, other than simple constants. For example, a function call is written: open parenthesis, function name, argument …

The Racket Guide starts with a tutorial on Racket basics, and then it describes the rest of the Racket language. Of course, you should feel free to mix and match the above two tracks, since there is …

The distribution includes pre-built, platform-independent bytecode; it installs much faster than plain source, and it is also compatible with fast installs of additional Racket packages.

An introduction to the Racket functional programming language and DrRacket development environment to explore topics in mathematics (mostly recreational) and computer science.

This manual defines the core Racket language and describes its most prominent libraries. The companion manual The Racket Guide provides a friendlier (though less precise and less complete) …

Racket is a lexically scoped language, which means that whenever an identifier is used as an expression, something in the textual environment of the expression determines the identifier’s binding.

Nov 22, 2025 · Racket is a community developed open source project and we welcome new contributors. See racket/README.md to learn how you can be a part of this amazing project.