User loginNavigation 
The Role of Composition in Computer ProgrammingThis paper by Donald McIntyre is a classic in the J language world. It ranks up there with "Why Functional Programming Matters" in terms of concise, impressive examples. Most of the examples have a geometric bent, like finding the area of a polygon. Note that this paper was written using an early version of J, so some of the syntax has unfortunately changed. 
Browse archivesActive forum topics

Recent comments
2 hours 8 min ago
2 hours 13 min ago
2 hours 26 min ago
5 hours 37 min ago
7 hours 48 min ago
8 hours 58 min ago
9 hours 14 min ago
9 hours 43 min ago
10 hours 10 min ago
10 hours 45 min ago