I'm no expert, but they're all pretty darn expressive.
Personally I'd love to work with Kdb+ as you have a lightning fast database and you typically use the q-language instead of k. Q allows you a lot of the power of both SQL and a general purpose array language.
The dyalog variant of APL does have support for common data formats like CSV & JSON, but I think it's all a lot more natural in Kdb+
Personally I'd love to work with Kdb+ as you have a lightning fast database and you typically use the q-language instead of k. Q allows you a lot of the power of both SQL and a general purpose array language.
The dyalog variant of APL does have support for common data formats like CSV & JSON, but I think it's all a lot more natural in Kdb+