Use of Functional/Declarative Languages?

[Wendell]

I'm in computer science and I'd like to ask about the use of certain languages in the finance industry. Although it seems that the field covered by this forum predominantly uses C++, I frequently hear of companies that base their operations on one of these languages: R/S APL/K Haskell F#/OCaml Smalltalk I can find very little information on the reasoning behind these choices. I'm told that is because the successful use of these is considered a competitive advantage so programmers are discouraged from talking about their work. Could anyone describe how these languages are used in the finance industry? Are there well-defined subfields where each is dominant, or is the choice between them more due to training and personal taste? Cheers, Wendell

 

[alain]

Look for Jane Street Capital. They use OCaml.

We do a lot of R and are looking into Scala since most of our stuff is based on the JVM