1 12687dd9 2023-08-04 jrmu ;; The first three lines of this file were inserted by DrScheme. They record metadata
 2 12687dd9 2023-08-04 jrmu ;; about the language level of this file in a form that our tools can easily process.
 3 12687dd9 2023-08-04 jrmu #reader(lib "htdp-intermediate-reader.ss" "lang")((modname 21.1.1) (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 12687dd9 2023-08-04 jrmu Exercise 21.1.1.   Define tabulate, which is the abstraction of the following two functions:
 5 12687dd9 2023-08-04 jrmu 
 6 12687dd9 2023-08-04 jrmu ;; tabulate-sin : number  ->  lon
 7 12687dd9 2023-08-04 jrmu ;; to tabulate sin between n 
 8 12687dd9 2023-08-04 jrmu ;; and 0 (inclusive) in a list
 9 12687dd9 2023-08-04 jrmu (define (tabulate-sin n)
10 12687dd9 2023-08-04 jrmu   (cond
11 12687dd9 2023-08-04 jrmu     [(= n 0) (list (sin 0))]
12 12687dd9 2023-08-04 jrmu     [else
13 12687dd9 2023-08-04 jrmu       (cons (sin n)
14 12687dd9 2023-08-04 jrmu 	(tabulate-sin (sub1 n)))]))
15 12687dd9 2023-08-04 jrmu      	
16 12687dd9 2023-08-04 jrmu ;; tabulate-sqrt : number  ->  lon
17 12687dd9 2023-08-04 jrmu ;; to tabulate sqrt between n 
18 12687dd9 2023-08-04 jrmu ;; and 0 (inclusive) in a list
19 12687dd9 2023-08-04 jrmu (define (tabulate-sqrt n)
20 12687dd9 2023-08-04 jrmu   (cond
21 12687dd9 2023-08-04 jrmu     [(= n 0) (list (sqrt 0))]
22 12687dd9 2023-08-04 jrmu     [else
23 12687dd9 2023-08-04 jrmu       (cons (sqrt n)
24 12687dd9 2023-08-04 jrmu 	(tabulate-sqrt (sub1 n)))]))
25 12687dd9 2023-08-04 jrmu Be sure to define the two functions in terms of tabulate. Also use tabulate to define a tabulation function for sqr and tan. What would be a good, general contract?    Solution