1 ;; The first three lines of this file were inserted by DrScheme. They record metadata
2 ;; about the language level of this file in a form that our tools can easily process.
3 #reader(lib "htdp-intermediate-reader.ss" "lang")((modname 18.2.1) (read-case-sensitive #t) (teachpacks ((lib "draw.ss" "teachpack" "htdp"))) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ((lib "draw.ss" "teachpack" "htdp")))))
4 (define (p1 a y) 
5   (+ (* a y)
6      (+ (* 2 a)
7 	(+ (* 2 y) 22))))
8 
9 (define (p2 x)
10   (+ (* 55 x) (+ x 11)))
11 
12 (define (p3 b)
13   (+ (p1 b 0)
14      (+ (p1 b 1) (p2 b))))
15 
16 (define (f x)
17   (local ((define (g x) (+ 2 (* x 2))))
18     (g x)))
19 
20 (define (a-function y)
21   (local ((define (f x y) (+ (* x y) (+ x y)))
22           (define (g z)
23             (local ((define (f x) (+ (* x x) 55))
24                     (define (g y) (+ (f y) 10)))
25               (f z)))
26           (define (h x) (f x (g x))))
27     (h y)))
28 
29 ;; sort : list-of-numbers  ->  list-of-numbers
30 (define (1sort alon)
31   (local ((define (sort alon)
32 	    (cond
33 	      [(empty? alon) empty]
34 	      [(cons? alon) (insert (first alon) (sort (rest alon)))]))
35 	  (define (insert an alon)
36 	    (cond
37 	      [(empty? alon) (list an)]
38 	      [else (cond
39 		      [(> an (first alon)) (cons an alon)]
40 		      [else (cons (first alon) (insert an (rest alon)))])])))
41     (sort alon)))
42 
43 (define x (cons 1 x))