Under your module imports, paste the following definitions: (define WIDTH 300) (define HEIGHT 160) (define ES (empty-scene WIDTH HEIGHT)) (define (next-size s) (/ s 2)) Next, write a tail-call recursive function called circles. This function should take two numbers, x and size, and a Scene scn. If size is less-than or equal to 2, then your function returns the scn unchanged (base case). Otherwise, your function should place a circle in the Scene that results from a recursive call to circles with x shifted by (+ size (next-size size)), a new size of (next-size size), and using the original Scene. After evaluating (circles 100 48 ES), your function should output this image of five blue circles, in this order, with the first circle at (x,y) coordinate position (100, 80):

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
Question

Under your module imports, paste the following definitions:

 

(define WIDTH 300)

(define HEIGHT 160)

(define ES (empty-scene WIDTH HEIGHT))

(define (next-size s) (/ s 2))

 

Next, write a tail-call recursive function called circles.  This function should take two numbers, x and size, and a Scene scn.  If size is less-than or equal to 2, then your function returns the scn unchanged (base case). Otherwise, your function should place a circle in the Scene that results from a recursive call to circles with x shifted by (+ size (next-size size)), a new size of (next-size size), and using the original Scene.  After evaluating (circles 100 48 ES), your function should output this image of five blue circles, in this order, with the first circle at (x,y) coordinate position (100, 80):



Language: racket, with debugging; memory limit: 128 MB
Ooo
Transcribed Image Text:Language: racket, with debugging; memory limit: 128 MB Ooo
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Knowledge Booster
Declaring and Defining the Function
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education