J
The J programming language, developed in the early 1990s by Kenneth E. Iverson and Roger Hui, is an array programming language based primarily on APL. Wikipedia
Created Year: 1990Designed by: Roger Hui
Developed by: Roger Hui • Kenneth E. Iverson
Aliases: J Language, J Programming Language
File extensions: ijs
Wikidata: Q383994
Influenced: BQN
Programming paradigms: array programming • tacit programming • functional programming • multi-paradigm programming • function-level programming • object-oriented programming
Language types: dynamic programming language • object-based language • function-level language • multi-paradigm programming language • functional programming language • tacit programming language • array programming language • interpreted language
J Influence Network
Pan and zoom the graph with your mouse or alternatively your fingers on touch devices.
Hello World in J
#!/opt/local/bin/jc
echo 'Hello World'
exit ''
Free J books, articles, documentation
- Arithmetic - Kenneth E. Iverson (PDF)
- Brief Reference - Chris Burke and Clifford Reiter (PDF)
- Calculus - Kenneth E. Iverson (PDF)
- Computers and Mathematical Notation - Kenneth E. Iverson
- Concrete Math Companion - Kenneth E. Iverson (PDF)
- Easy J - Linda Alvord, Norman Thomson (PDF) (Word DOC)
- Exploring Math - Kenneth E. Iverson (PDF)
- J for C Programmers - Henry Rich
- J Primer
- Learning J - Roger Stokes (online)
- Math for the Layman - Kenneth E. Iverson (zipped HTML+images)
Search on GitHub
| Name | Description | Last pushed to | Open issues | Forks | Stars | Size |
|---|
Latest data update: 2026-05-25