The Dyalog Language Engine

At the heart of Dyalog is an ISO/IEC 13751-compliant APL language engine that has been tuned and optimised for more than 30 years. The current Dyalog language has evolved from a classical APL2-style interpreter into a modern, multi-paradigm programming language. The most important extensions to the original APL language include:

1983: Nested arrays: Any element of an array can be another array (APL2)
1990: Namespaces
1995: Control structures (If/Then/Else, Repeat/Until, exception handling, and so on)
1996: Functional programming: dfns provide lexical scope and lambda-style expressions
2006: Object orientated programming, allowing integration with OO frameworks and Microsoft .NET
2014: Point-free or "tacit" syntax similar to that in the J programming language
2014: Futures and isolates for parallel programming

New versions of Dyalog are released approximately annually.

Dyalog language engines provide the same language features on all platforms and enable extreme inter-operability; binary workspace images and component files can be shared in real time without conversion between all platforms and TCP sockets can be used to exchange binary data between the platforms.

The individual tools and interfaces available vary according to the platform that the engine is running on, but TCP, Web Service and Server frameworks and the ODBC database interface are available on most platforms.