|(language)||Dyalog APL - Arguably the current (2001) market-leading
implementation of APL, from Dyadic Systems Limited. It
runs under Windows 95, Windows 98, Windows NT, and
Windows 2000; and for several popular UNIX systems
Dyalog APL complies with ISO 8485 and has many features that make it good for complex GUI applications.
Dyalog APL was introduced in 1983 and is currently (2002) in active development.