# Write a program that uses recursion to calculate dynamical systems such as the Lorenz attractor and visualize them using Turtle Graphics.

Learning Goal: I’m working on a python question and need an explanation and answer to help me learn.Labs for Fun: Turtle GraphicsObjective: learn Turtle GraphicsPrerequisites: installation of Python3 and IDLE, knowledge of the basic Python commandsAdditional Resources:The Beginner’s Guide to Python Turtle – Real Python (Links to an external site.)
Turtle programming in Python (tutorialspoint.com) (Links to an external site.)
turtle — Turtle graphics — Python 3.8.8 documentation (Links to an external site.)
Turtle Race! – Introduction | Raspberry Pi Projects (Links to an external site.)
Data files in Files/Labs for Fun on Canvas
Topics: Turtle Graphics Overview
Turtle Graphics API
Basic Commands
Fractals and Recursion
Animation
Turtle Graphics OverviewTurtle Graphics is a 2D Graphics generated by an interactive tool named Turtle. Turtle is a program for drawing shapes and images and is named so because it emulates a moving turtle that also functions as a pen that draws lines as it moves. The turtle module in Python is located in the folder turtledemo and is a part of the standard library. So, you do not need to use pip and install any external libraries! Programming with Turtle is fun and very educational. Even though, using Turtle is considered by many an easy task (it is used for teaching programing to kids), I believe that programming with Turtle can be very challenging. Turtle can be used for generating complex and not complex fractals and is an ideal tool for learning recursions. Using Turtle can be tricky especially when you use it for recursions.Turtle APIThe main class of the turtle module is a Turtle. A turtle object has pen size, speed, shape, and color attributes:shapesize(1,1,1) # default values: length, width, outline width
pensize(1) # default value
shape(“turtle”) # can be triangle, circle, arrow, classic
fillcolor(“red”) # default fill is black
pencolor(“green”) # default outline is black
color(“green”, “red”) # sets both colors, fill and outline
speed(1) # default 0
Another main class is a Screen. A screen object has properties of a window and a canvas including title, background color, and window size. You can also control drawings by associating them with events. title()
bgcolor()
bgpic()
screensize()
clear()
Events and Animation Controldelay()
update()
listen()
onkey()
onkeypress()
onclick()
ontimer()
mainloop()
register_shape()
Requirements: 70   |   .doc file

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