Although I think I could create a function in Scala that permits the same thing, yes? Mostly the arbitrary operands or range reference imply recursion & iteration, which I believe I could implement easily. (Check me if I'm wrong here, I might be missing something.)
I wouldn't have suggested that, except that Clojure (as I understand it) also encourages that one can "expand" the language. I would see adding this capability as a Scala function in the same light.