You think you know when you learn, are more sure when you can write, even more when you can teach, but certain when you can program.
Yale University computer scientist
This chapter is for people with little or no experience in Lisp. Readers who feel confident in their Lisp programming ability can quickly skim the chapter or skip it entirely. This chapter necessarily moves quickly, so those with little programming experience, or any reader who finds this chapter tough going, should seek out a supplementary introductory text. My recommendations are in the preface.
Computers allow one to carry out computations. A word processing program deals with words while a calculator deals with numbers, but the principles ...