01-codeclub.md

Code Club

One

The Analytical Engine has no pretensions whatever to originate anything. It can do whatever we know how to order it to perform. — Ada Lovelace (d. 1852)

• Installing Racket

• Finding the textbook

• Overview

  • Alternating lessons and "code club"
  • First few weeks follow the Prologue, mostly show-and-tell

• What is programming?

• Slogan: Everything means something

• Project ideas

Études

(+ 2 2)

(* 3 3)

(- 4 2)

(/ 6 2)

(sqr 3)

(sqrt 49)

(expt 2 3)

(sin 0)

(cos pi)

(+ 2 (+ (* 3 3) 4))

> (+ 2 (+ (* 3 (/ 12 4)) 4))

(+ (* 5 5) (+ (* 3 (/ 12 4)) 4))

;; Fails: BSL `+` requires at least two arguments
#(+)

;; Fails: BSL `*` requires at least two arguments
(*)

Summary

Values and expressions

Is this programming?