Q2. Let’s have some fun! You can copy and paste my code in blue. Turtle graphics is a classic teaching tool in computer science, originally invented in the 1960s and reimplemented over and over again in different programming languages. Let’s first install and load that package. library(TurtleGraphics) Here’s the idea. You have a turtle, and she lives in a nice warm terrarium: turtle_init() Your job is to give her instructions, to program her to undertake certain actions. So for example, you can use the turtle_forward(distance=) command to get her to walk forwards, the turtle_left(angel=) command to get her to rotate to the left, turtle_backward(distance=) command to get her to walk backwards, and turtle_right(angel=) command to get her to walk to the right. For example, if I used this command my turtle would walk forward 10 steps and leave a trail behind her showing the path she took. turtle_forward(distance = 10) That seems simple enough, but what if I want my turtle to draw a more complicated shape? Let’s say I want her to draw a hexagon. There are six sides to the hexagon, so the most natural way to write code for this is to write a for loop that loops over the sides! At each iteration within the loop, I’ll have the turtle walk fowards, and then turn 60 degrees to the left. Here’s what happens: turtle_init() for(side in 1:6) { turtle_forward(distance = 10) turtle_left(angle = 60) } 1) Use TurtleGraphics to draw a square rather than a hexagon. 2) Use TurtleGraphics to draw a triangle.

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

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Q2. Let’s have some fun! You can copy and paste my code in blue.
Turtle graphics is a classic teaching tool in computer science, originally invented in the 1960s and
reimplemented over and over again in different programming languages. Let’s first install and load that
package.
library(TurtleGraphics)
Here’s the idea. You have a turtle, and she lives in a nice warm terrarium:
turtle_init()
Your job is to give her instructions, to program her to undertake certain actions. So for example, you can
use the turtle_forward(distance=) command to get her to walk forwards, the turtle_left(angel=)
command to get her to rotate to the left, turtle_backward(distance=) command to get her to walk
backwards, and turtle_right(angel=) command to get her to walk to the right. For example, if I used this
command my turtle would walk forward 10 steps and leave a trail behind her showing the path she
took.
turtle_forward(distance = 10)
That seems simple enough, but what if I want my turtle to draw a more complicated shape? Let’s say I
want her to draw a hexagon. There are six sides to the hexagon, so the most natural way to write code
for this is to write a for loop that loops over the sides! At each iteration within the loop, I’ll have the
turtle walk fowards, and then turn 60 degrees to the left. Here’s what happens:
turtle_init()
for(side in 1:6) {
turtle_forward(distance = 10)
turtle_left(angle = 60)
}

1) Use TurtleGraphics to draw a square rather than a hexagon.
2) Use TurtleGraphics to draw a triangle.

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