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Use RACKET stride: a macro that takes a variable name var, a stride length n, a list lst, and an expression expr, and returns the list of values resulting from evaluating expr with var set to each n-th value from the lst. E.g., > (stride x 2 '("hello" "how" "are" "you" "this" "fine" "day") (string-upcase x)) '("HELLO" "ARE" "THIS" "DAY") > (stride x 5 (range 30) (sqr x)) '(0 25 100 225 400 625) build the code: (define-syntax-rule (stride var n lst expr) void)

Use RACKET stride: a macro that takes a variable name var, a stride length n, a list lst, and an expression expr, and returns the list of values resulting from evaluating expr with var set to each n-th value from the lst. E.g., > (stride x 2 '("hello" "how" "are" "you" "this" "fine" "day") (string-upcase x)) '("HELLO" "ARE" "THIS" "DAY") > (stride x 5 (range 30) (sqr x)) '(0 25 100 225 400 625) build the code: (define-syntax-rule (stride var n lst expr) void)

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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Use RACKET

stride: a macro that takes a variable name var, a stride length n, a list lst, and an expression expr, and returns the list of values resulting from evaluating expr with var set to each n-th value from the lst. E.g.,

> (stride x 2 '("hello" "how" "are" "you" "this" "fine" "day") (string-upcase x)) '("HELLO" "ARE" "THIS" "DAY") > (stride x 5 (range 30) (sqr x)) '(0 25 100 225 400 625) build the code: (define-syntax-rule (stride var n lst expr) void)

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