1 Introduction

2 Install XLOGO

 2.1 XLOGO Configuration

  2.1.1 Linux Environment

  2.1.2 Windows Environment

 2.2 XLOGO Updates

 2.3 Uninstall

3 Interface features:

 3.1 First run

 3.2 The main window

 3.3 The procedure editor

 3.4 Quit XLOGO

4 Menu options:

 4.1 “File” Menu

 4.2 “Edit” Menu

 4.3 “Tools” Menu

 4.4 “Help” Menu

5 Conventions adopted by XLOGO

 5.1 Commands and their interpretation

 5.2 Procedures

 5.3 Specific character \

 5.4 Case-sensitivity

 5.5 Operators and syntax

6 Basic primitives

 6.1 New primitives

 6.2 Drawing a regular polygon

  6.2.1 Square

  6.2.2 Equilatéral triangle

  6.2.3 Hexagon

  6.2.4 Drawing a regual polygon in general

 6.3 Saving a procedure

 6.4 Exercice ...

7 Using coordinates

 7.1 Presentation

 7.2 Exercice:

8 Variables

 8.1 Examples

 8.2 Drawing a rectangle with chosen dimension

 8.3 Drawing at different scales

 8.4 Exercice:

9 Recursion

 9.1 With drawing area.

  9.1.1 First example:

  9.1.2 Second example:

 9.2 With the text zone

  9.2.1 First example:

  9.2.2 Breakout test

 9.3 A fractal example: Van Koch snowflake

 9.4 Recursion with words

 9.5 Calculate a factorial

 9.6 π Approximation

10 Create an animation

 10.1 Calculator’s numbers

  10.1.1 Filling a rectangular

  10.1.2 The program

  10.1.3 Creating an animation

 10.2 Second animation: The growing man

11 Interact with the user

 11.1 Question-answer

 11.2 Programming a little game.

12 Topic: Two dice sum

 12.1 Simulating rolling one die.

 12.2 The program

13 Topic: Probabilistic approximation of π

 13.1 GCD (Greatest Common Divisor)

 13.2 Euclidean algorithm

 13.3 Calculate a GCD in LOGO programming

 13.4 Calculating π-approximation

 13.5 More complex: π generating π.....

14 Topic: Menger’s sponge

 14.1 Using recursion

 14.2 Second approach: Drawing a Menger sponge, order 4

  14.2.1 Sierpinski carpet

  14.2.2 Drawing a Sierpinski carpet of order p

  14.2.3 All Different possible schemas for columns

  14.2.4 The program

  14.2.5 Menger’s sponge order 4

15 Topic: Lindenmayer system

 15.1 Formal definition

 15.2 Turtle interpretation

  15.2.1 Usual Symbols

  15.2.2 Van Snowflake

  15.2.3 Quadratic Van Koch curve

  15.2.4 Dragon curve

  15.2.5 Hilbert 3D curve

A List of primitives

 A.1 Movement of the turtle; pen and color settings

  A.1.1 A word on colors

  A.1.2 Animation Mode

  A.1.3 Writing in the text area with the primitive print or write

 A.2 Turtle and 3D

  A.2.1 The perspective projection

  A.2.2 Understanding orientation in a 3D World

  A.2.3 Primitives available in 2D mode and 3D mode

  A.2.4 3D Viewer

  A.2.5 Drawing a cube

  A.2.6 Lighting the scene

  A.2.7 Fog effect

 A.3 Arithmetical and logical operations

 A.4 Operations on lists

 A.5 Booleans

 A.6 Testing an expression with the primitive if

 A.7 The workspace

  A.7.1 Procedures

  A.7.2 Concept of variables

  A.7.3 Property Lists

 A.8 Advanced fill function:

  A.8.1 fill and fillzone

  A.8.2 Primitive fillpolygon

 A.9 Break commands

 A.10 Multiturtle Mode

 A.11 Play music

  A.11.1 Playing music using MIDI synthetizer

  A.11.2 Playing MP3

 A.12 Loops:

  A.12.1 A loop with repeat

  A.12.2 A loop with for

  A.12.3 A loop with while

  A.12.4 A loop with foreach

  A.12.5 A loop with forever

  A.12.6 A loop with repetewhile

  A.12.7 A loop with repeatuntil

 A.13 Receiving input from the user

  A.13.1 Interact with the keyboard

  A.13.2 Some examples of usage:

  A.13.3 Interact with the mouse

  A.13.4 Some examples of usage:

  A.13.5 Graphical components

 A.14 Time and date

 A.15 Using a network with XLogo

  A.15.1 The network How to

  A.15.2 Primitives for networking

B Launching XLOGO with command line

C Executing Xlogo from the WEB

 C.1 The problem

 C.2 How to create the jnlp file

D Solutions

 D.1 Chapitre 5

 D.2 Chapter 6

 D.3 Chapter 7

  D.3.1 the robot

  D.3.2 The frog

 D.4 Chapter 9:

E FAQ - Tricks Things to know

 E.1 Though I erase a procedure from the editor, it keeps on popping back!

 E.2 I’m using the version in Esperanto but I can’t write with the special characters!

 E.3 In the Sound tab from the Preferences dialogue box, no instrument can be found.

 E.4 How to quickly retype a command used previously?

 E.5 How can you help?