K is a vector language. There is indeed some overlap in ideas with Mathematica and Lisp, but it draws most heavily from APL. There are a handful of decent open-

K is a vector language. There is indeed some overlap in ideas with Mathematica and Lisp, but it draws most heavily from APL. There are a handful of decent open-source or at least freely available interpreters online: https://ngn.bitbucket.io/k.html https://ngn.bitbucket.io/k.html