Functions in Lisp
Volume Number: 1
Issue Number: 8
Column Tag: Lisp Listener
"Functions in Lisp
By Andy Cohen, Human Factors Engineering, Hughes Aircraft, MacTutor
Contributing Editor
Defining Procedures
As you may recall from the first installment of the Lisp Listener, a procedure is
a description of an action or computation. A primitive is a predefined or "builtin
procedure (e.g. "+"). As in Forth, Lisp can have procedures which are defined by the
programmer. DEFUN, from DEfine FUNction, is used for this purpose. The syntax for