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1. Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line). color is represented by a string and positions is represented by a list which has only 2 elements. Each element is a posn structure with 2 fields: x (x coordinate) and y (y coordinate). x and y are represented by numbers. (Do not forget to write down the functions - constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(x,y.) and B(x2,y½) is given by: distance(A,B) = v(x,-x,}+(y,-y»F°

1. Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line). color is represented by a string and positions is represented by a list which has only 2 elements. Each element is a posn structure with 2 fields: x (x coordinate) and y (y coordinate). x and y are represented by numbers. (Do not forget to write down the functions - constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(x,y.) and B(x2,y½) is given by: distance(A,B) = v(x,-x,}+(y,-y»F°

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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; Purpose: to decide which season ;Contract: findMonth : number (month) ---> String ;Examole: (check-expect (findMonth 0) 'invalid) (check-expect (findMonth 145) 'invalid) ;Header: ; (define (findMonth x) 'String) ;Template: (define (findMonth x) (cond ...x... 0) 'invalid) 12) 'invalid) ((<= ((> ..X. ... ( (and (>= ...x... 3) (<= ...x... 5)) 'spring) ( (and (>= ...x... 6) (<= ...x... 8)) 'summer) ( (and (>= ...x.. 9) (<= ...x... 11)) 'fall) (else 'winter))) ; Function: (define (findMonth x) (cond ((<= x 0) ( (> x 12) 'invalid) ( (and (>= x 3) (<= x 5)) 'spring) ( (and (>= x 6) (<= x 8)) 'summer) ( (and (>= x 9) (<= x 11)) 'fall) 'invalid) (else 'winter)) ;Test: (findMonth 4) (findMonth 14)
Transcribed Image Text:; Purpose: to decide which season ;Contract: findMonth : number (month) ---> String ;Examole: (check-expect (findMonth 0) 'invalid) (check-expect (findMonth 145) 'invalid) ;Header: ; (define (findMonth x) 'String) ;Template: (define (findMonth x) (cond ...x... 0) 'invalid) 12) 'invalid) ((<= ((> ..X. ... ( (and (>= ...x... 3) (<= ...x... 5)) 'spring) ( (and (>= ...x... 6) (<= ...x... 8)) 'summer) ( (and (>= ...x.. 9) (<= ...x... 11)) 'fall) (else 'winter))) ; Function: (define (findMonth x) (cond ((<= x 0) ( (> x 12) 'invalid) ( (and (>= x 3) (<= x 5)) 'spring) ( (and (>= x 6) (<= x 8)) 'summer) ( (and (>= x 9) (<= x 11)) 'fall) 'invalid) (else 'winter)) ;Test: (findMonth 4) (findMonth 14)
1. Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line). color is represented by a string and positions is represented by a list which has only 2 elements. Each element is a posn structure with 2 fields: x (x coordinate) and y (y coordinate). x and y are represented by numbers. (Do not forget to write down the functions - constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(x,,y,) and B(x2,y½) is given by: distance(A,B) = v(x,-x,}+(y,-y,}
Transcribed Image Text:1. Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line). color is represented by a string and positions is represented by a list which has only 2 elements. Each element is a posn structure with 2 fields: x (x coordinate) and y (y coordinate). x and y are represented by numbers. (Do not forget to write down the functions - constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(x,,y,) and B(x2,y½) is given by: distance(A,B) = v(x,-x,}+(y,-y,}
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