CS代写 7/21/21
7/21/21 What is an abstraction? A Physical Machine 0000 0000 0001 0000 0010 0000 Machine Instructions (defun fun (L) (mapcar #’1+ L)) A Programming Language An abstraction A Physical Machine 1 0000 0000 0001 0000 0010 0000 A Physical Machine Machine Instructions LISP car cdr defun map What is an abstraction? 12 34 A Physical […]