.... and the J implementation is inspired by the "A" miniature APL interpreter written by Arthur Whitney who later went to create K. See http://code.jsoftware.c

.... and the J implementation is inspired by the "A" miniature APL interpreter written by Arthur Whitney who later went to create K. See http://code.jsoftware.com/wiki/Essays/Incunabulum http://code.jsoftware.com/wiki/Essays/Incunabulum for more (and google "J incunabulum" if you want to see other people's commentaries)