I'm curious why they chose those particular syntax and operator naming conventions. Of course, syntax is superficial to some extent, but this seems a bit extreme.
If you're referring to the language, it's derived from J, which is derived from APL. There's a whole philosophy underlying this terseness, which is basically but probably inadequately represented as: mathematical notation isn't designed for amateur readability, it's designed as a tool for the mind of the working mathematician, so it doesn't need to be all that approachable to the newcomer.
Q is derived from K (it's a thin wrapper that uses words instead of sigils for some verbs), which is derived from APL; J is a completely separate lineage, also based on APL.