Then you're clearly not deep enough into the world of array programming languages. See, K is a programming language that takes many design cues from J, which is in turn based on APL. It's known primarily for that and for KDB, the database engine written in it.
I legit use a J interpreter instead of a calculator on my phone. I wrote fizzbuzz a few times - it was hard for me in J, but I've done it. K is real but I can't even write fizzbuzz in it.