Sneha at 11:31, 1 April 2013

2013-04-01T11:31:18Z

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Madhurig at 06:53, 8 March 2013

2013-03-08T06:53:52Z

Sneha at 05:36, 10 January 2013

2013-01-10T05:36:04Z

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Sneha at 05:29, 10 January 2013

2013-01-10T05:29:55Z

Sneha at 05:29, 10 January 2013

2013-01-10T05:29:17Z

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Sneha: Created page with ' > > > {| style="border-spacing:0;" > > |'' Time'' > > |'''Narration''' > > > |- > > | 00.02 > > |Hello Everybody. Welcome to the KTurtle tutorial > > > > > |- > > | 00.05 > > …'

2013-01-10T05:09:33Z

Created page with ' > > > {| style="border-spacing:0;" > > |'' Time'' > > |'''Narration''' > > > |- > > | 00.02 > > |Hello Everybody. Welcome to the KTurtle tutorial > > > > > |- > > | 00.05 > > …'

New page

>
>
> {| style="border-spacing:0;"
>
> |'' Time''
>
> |'''Narration'''
>
>
> |-
>
> | 00.02
>
> |Hello Everybody. Welcome to the KTurtle tutorial
>
>
>
>
> |-
>
> | 00.05
>
> |If this is the first time you are using KTurtle, please see the
> “Introduction to KTurtle” tutorial on the spoken tutorial website.
>
>
> |-
>
> |00.12
>
> | To get started with KTurtle, I am using the Linux operating system ubuntu
> Version 11.04 and KTurtle version 0.8.1 beta.
>
>
> |-
>
> | 00.21
>
> |This tutorial will help you understand further, the '''Grammar of
> TurtleScript'''.
>
>
> |-
>
> | 00.26
>
> | If you have already installed KTurtle,
>
>
> |-
>
> | 00.28
>
> |go to the Ubuntu Menu Item '''Applications >''' '''Education''' and click
> on the '''KTurtle''' Application.
>
>
> |-
>
> | 00.34
>
> |Another way to open KTurtle is by going to '''Applications > Accessories
> menu and click on Terminal'''
>
>
> |-
>
> | 00.39
>
> | At the prompt type the name of the application that is “'''kturtle'''” and
> hit 'Enter'.
>
>
> |-
>
> | 00.46
>
> |This will open the application.
>
>
> |-
>
> |00.51
>
> | In this tutorial, we will learn, the grammar of turtle script which
> includes,
>
>
>
>
> |-
>
> | 00.55
>
> | commands and comments
>
>
> |-
>
> | 00.56
>
> | numbers, variables and strings
>
>
> |-
>
> | 00.58
>
> |mathematical and comparison operators
>
>
>
> |-
>
> | 01.00
>
> |and the boolean values
>
>
> |-
>
> |01.02
>
> |And the '''if '''and '''else '''conditions
>
>
> |-
>
> | 01.05
>
> | The '''TurtleScript '''is a programming language and has different types
> of words and symbols.
>
>
> |-
>
> | 01.10
>
> |They are used for different purposes.
>
>
> |-
>
> | 01.12
>
> |And it instructs KTurtle to do something.
>
>
> |-
>
> | 01.15
>
> |The grammar of TurtleScript can include '''comments and commands, numbers
> and strings .'''
>
>
> |-
>
> | 01.24
>
> |Numbers can be stored in ''mathematical operators ''in ''comparison
> operators.''
>
>
> |-
>
> | 01.28
>
> |They can also be stored in variables.
>
>
> |-
>
> | 01.33
>
> |let us First have a look at variables, then we look at assigning values to
> these variables.
>
> |-
>
> |01.38
>
> |In the editor of a Kturtle script ,let us open example for
> a'''variable'''.
>
>
> |-
>
> |01.43
>
> |Variables are words that start with a symbol ‘'''$'''’, for example '''$a'''.
>
>
> |-
>
> | 01.48
>
> |In the editor they are highlighted with the purple color.
>
>
> |-
>
> | 01.52
>
> |Using the assignment, '''equal to a variable is given its content.
>
>
> |-
>
> | 01.56
>
> |Variables can contain any number, string or boolean values (true/false).
>
>
> |-
>
> | 02.05
>
> |It will keep that content until the program finishes the execution or until
> the variable is reassigned to something else.
>
>
> |-
>
> | 02.11
>
> |You can use variables, once assigned, just as if they are their content.
>
>
> |-
>
> | 02.16
>
> |For example, consider the code being typed in the '''editor''' now.
>
>
>
> |-
>
> | 02.20
>
> |'''$a = 2004 ''''''$b = 25 '''
>
>
> |-
>
> | 02.27
>
> |And'''print $a + $b '''
>
>
> |-
>
> | 02.33
>
> |First the value 2004 is assigned to the variable '''$a''' .
>
>
> |-
>
> | 02.37
>
> |The next the value 2005,25'is assigned to variable '''$b ''.
>
>
>
>
> |-
>
> | 02.42
>
> |The '''print''' command is used to command the turtle to print something on
> the canvas.
>
>
>
>
> |-
>
> | 02.47
>
> |'''print '''takes numbers and strings as input.
>
>
>
>
> |-
>
> | 02.51
>
> |'''print $a + $b '''will add the two values and the turtle prints the value
> 2024.
>
>
> |-
>
> |02.57
>
> |I am now running the command , you can see that turtle has printed the
> final result.
>
>
> |-
>
> | 03.05
>
> | Let us next see the Mathematical and the Comparison Operators.
>
>
> |-
>
> | 03.08
>
> |The basic mathematical operators here are '''+, - , * , / '''
>
>
> |-
>
> | 03.16
>
> | In the editor of a Kturtle let us type the following example –
>
>
> |-
>
> | 03.20
>
> |'''reset'''
>
>
>
> |-
>
> | 03.23
>
> |'''canvassize 200,200'''which resizes the canvas to 200 pixels of width and
> height each.
>
>
>
> |-
>
> | 03.32
>
> |'''$add = 1 + 1'''
>
>
>
> |-
>
> | 03.40
>
> |'''$subtract = 20 - 5'''
>
>
>
> |-
>
> | 03.52
>
> |'''$multiply = 15 * 2'''
>
>
>
> |-
>
> | 03.59
>
> |'''$divide = 30 /30'''
>
>
>
> |-
>
> | 04.05
>
> |'''go 10,10'''
>
>
>
> |-
>
> | 04.09
>
> |'''print $add'''
>
>
>
> |-
>
> | 04.12
>
> |'''go 50,50'''
>
>
>
> |-
>
> | 04.15
>
> |'''print $subtract'''
>
>
>
> |-
>
> | 04.20
>
> |'''go 100,100'''
>
>
>
> |-
>
> | 04.25
>
> |'''print $divide'''
>
>
>
> |-
>
> | 04.30
>
> |'''go 0,0'''
>
>
> |-
>
> |04.34
>
> | And'''print $multiply'''
>
>
>
> |-
>
> | 04.41
>
> |'''go 175,175'''
>
>
>
>
> |-
>
> | 04.49
>
> | The canvas size 200,200 fix the width and height of the canvas to 200
> pixels each.
>
> |-
>
> |04.55
>
> | The value 1+1 is assigned to the variable'' $+'',
>
> |-
>
> | 04.58
>
> | The 20-5 is assigned to variable subtract,
>
> |-
>
> | 05.02
>
> |The value 15 * 2 will be assigned to the variable ''multiply''.
>
> |-
>
> | 05.06
>
> | 30/30 is assigned to the variable ''Divide.
>
>
> |-
>
> | 05.10
>
> | We will not print the variables ,the result which is assigned to them and
> the turtle moves in the canvas.
>
> |-
>
> | 05.16
>
> | Let us now run this code.The command which is getting executed is
> highlighted in the editor and the turtle is printing the results.
>
>
> |-
>
> | 05.34
>
> | You can see that the values have been printed on the canvas now.
>
>
> |-
>
> | 05.39
>
> | Let us consider a simple example for using the comparison operator .Type
> the commands being shown on the screen
>
>
> |-
>
> | 05.46
>
> |'''$answer = 10 > 3'''
>
>
>
> |-
>
> | 05.51
>
> |And'''print $answer'''
>
>
> |-
>
> | 06.02
>
> |Here 10 is compared with 3 the ’'''greater than'''’ operator.
>
>
>
>
> |-
>
> | 06.08
>
> |The result of this comparison, the boolean value true will be stored in the
> variable '''$answer, '''and the value '''true '''is printed.
>
> |-
>
> | 06.15
>
> | Let me know Run this piece of code,you can see that the turtle has printed
> the value true on the canvas.
>
>
> |-
>
> | 06.24
>
> | lets see how Strings work in this application –
>
>
> |-
>
> | 06.27
>
> |Strings can be put in variables, just like numbers.
>
>
> |-
>
> | 06.31
>
> |Strings cannot be used in mathematical operators or comparison operators
> and Strings are highlighted with red.
>
>
> |-
>
> | 06.38
>
> |Strings start and end with the '''''''' mark, by these marks KTurtle knows
> that it is a string.
>
>
> |-
>
> | 06.45
>
> | For example:I am typing the print command followed by a string,See that
> the string is highlighted in Red color.
>
>
> |-
>
> | 06.56
>
> | When I run this piece of code, the turtle prints the chain on the canvas.
>
>
> |-
>
> |07.03
>
> | '''Boolean Values'''
>
>
>
>
> |-
>
> | 07.04
>
> |There are only two boolean values: ''true ''and ''false''.
>
>
>
>
> |-
>
> | 07.07
>
> |For example –I am typing the example for using the boolean value in
> kturtle.
>
>
>
>
> |-
>
> | 07.14
>
> |'''$answer = 10 > 3'''
>
>
>
> |-
>
> | 07.20
>
> |'''print $answer'''
>
>
> |-
>
> | 07.25
>
> |The turtle choose the value true,the boolean value true is assigned the
> variable ''$answer ''is set to ''true ''because 10 is larger than 3.
>
>
>
> |-
>
> |07.36
>
> | '''Executing 'if' '''and ''''else''''conditions.
>
>
> |-
>
> | 07.38
>
> |the code that is placed between the brackets will be executed only ''if
> ''the ''boolean value ''evaluates 'true'.
>
>
> |-
>
> | 07.44
>
> |The code between the brackets after ''else ''is only executed if the ''if
> ''condition is false.
>
>
>
> |-
>
> | 07.50
>
> |For example –
>
>
> |-
>
> | 07.53
>
> |'''reset '''
>
>
>
> |-
>
> | 07.55
>
> |'''$x = 4 '''I now have a sample piece of code on my editor here , which
> compares the numbers 4 and 5 and prints the results accordingly.
>
>
> |-
>
> | 08.03
>
> |Let me now run this code. The turtle has compared the variables 4 and 5 and
> its printing the result 4 is smaller than 6 .
>
>
> |-
>
> | 08.18
>
> |Now to the Assignment part.
>
>
>
>
> |-
>
> | 08.20
>
> |Using the '''if '''and '''else '''conditions, the '''mathematical
> operators''', solve an equation and print the results using the '''print
> '''and '''go '''command.
>
> |-
>
> | 08.28
>
> |That is you can choose any four random numbers multiply the two sets of
> random numbers, compare the results using the comparison operators and print
> both the results and print that greater result at center of the canvas you
> can choose any equation which you like.
>
> |-
>
> | 08.45
>
> | I would like to acknowledge the spoken tutorial project
>
>
> |-
>
> | 08.48
>
> |which is part of the talk to a teacher project.
>
>
> |-
>
> | 08.50
>
> |It is supported by the National Mission on Education through ICT, MHRD
> government of India.
>
>
> |-
>
> | 08.56
>
> | you can see more information about this on the link shown on the screen.
>
>
> |-
>
> |08.59
>
> | Thank you this is Sindhu signing off. Enjoy exploring KTurtle.
>
>
> |}

--
Thanks and regards
Madhuri Ganpathi

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−	~~Thanks and regards~~
−	~~Madhuri Ganpathi~~

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KTurtle/C2/Grammar-of-TurtleScript-Part-I/English-timed - Revision history

Sneha at 11:31, 1 April 2013

Madhurig at 06:53, 8 March 2013

Sneha at 05:36, 10 January 2013

Sneha at 05:29, 10 January 2013

Sneha at 05:29, 10 January 2013

Sneha: Created page with ' > > > {| style="border-spacing:0;" > > |'' Time'' > > |'''Narration''' > > > |- > > | 00.02 > > |Hello Everybody. Welcome to the KTurtle tutorial > > > > > |- > > | 00.05 > > …'