I'm not sure how easily interconvertible they are (and http://www.jsoftware.com/papers/j4apl.htm http://www.jsoftware.com/papers/j4apl.htm suggests: "considerab

I'm not sure how easily interconvertible they are (and http://www.jsoftware.com/papers/j4apl.htm http://www.jsoftware.com/papers/j4apl.htm suggests: "considerably, but not trivially"); but, as far as I know, APL per se is mostly gone from the modern computing world, with J its free successor: http://jsoftware.com http://jsoftware.com .