Difference between revisions of "KTurtle/C3/Programming-Concepts/English-timed"

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||06:37
 
||06:37
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||Fontsize takes number as input, set in pixels.
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||Fontsize takes number as input, sets in pixels.
 
|-
 
|-
 
||06:43
 
||06:43
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||'''print ($i^$n)''' calculates & prints nth power of a number.  
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||'''print ($i^$n)''' calculates & prints nth power of a number ($i).  
 
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|-
 
||07:00
 
||07:00
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||Let's enter '5' for i, and click OK
+
||Let's enter 5  for 'i' and click '''OK'''
 
|-
 
|-
 
||07:05
 
||07:05
−
||Let's enter  '4' for n, and click OK. 5^4=625  is displayed on canvas.  
+
||Let's enter  4 for 'n' and click OK. 5^4='''625''' is displayed on the canvas.  
 
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||07:18
 
||07:18
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|-
 
||07:43
 
||07:43
−
||Let me zoom the program text it may possibly be a little blurred.
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||Let me zoom the program text, it may possibly be a little blurred.
 
|-
 
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||07:49
 
||07:49
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|| 07:52
 
|| 07:52
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||# sign comments a line written after it .  
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||'#' sign comments a line written after it.  
 
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||07:57
 
||07:57
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|-
 
|-
 
||08:24
 
||08:24
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||Let me run the program now.
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||Let me '''run''' the program now.
 
|-
 
|-
 
||08:28
 
||08:28
−
||Let's enter  '169'  for i, and click OK
+
||Let's enter  '''169'''  for 'i' and click '''OK'''.
 
|-
 
|-
 
||08:34
 
||08:34
−
||square root of 169 = 13, is displayed on canvas.
+
||Square root of 169 = '''13''' is displayed on canvas.
  
 
|-
 
|-
 
||08:39
 
||08:39
−
||Let's  run again,
+
||Let's  run again.
 
|-
 
|-
 
||08:42
 
||08:42
−
||let's enter -169  for i and click OK.
+
||Let's enter '''-169''' for 'i' and click '''OK'''.
 
|-
 
|-
 
||08:49
 
||08:49
−
||If we enter negative number, output is ''''nan''''  it means not a number.
+
||If we enter negative number, output is ''''nan''''. It means "not a number".
 
|-
 
|-
 
||08:56
 
||08:56
−
||As square root of negative number is not a real  number.
+
||As square root of negative number is not a real  number.
 
|-
 
|-
 
||09:02
 
||09:02
−
|| let's next evaluate Cube root of a positive number through a program.
+
|| Let's next evaluate cube-root of a positive number through a program.
 
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||09:08
 
||09:08
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|-
 
|-
 
||09:25
 
||09:25
−
||Let me zoom into the program text it may possibly be a little blurred.
+
||Let me zoom into the program text, it may possibly be a little blurred.
 
|-
 
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||09:31
 
||09:31
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|-
 
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||09:35
 
||09:35
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||# sign comments a line written after it.
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||'#' sign comments a line written after it.
 
|-
 
|-
 
||09:38
 
||09:38
−
||Please note this is a single line comment.  
+
||Please note this is a '''single line comment'''.  
 
|-
 
|-
 
||09:42
 
||09:42
−
||Every comment must be preceded by a # sign.
+
||Every comment must be preceded by a '#' sign.
 
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||09:48
 
||09:48
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|-
 
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||09:59
 
||09:59
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||'''$C=($i)^(1/3)''' calculates cube root of a number.
+
||'''$C=($i)^(1/3)''' calculates cube-root of a number.
 
|-
 
|-
 
||10:07
 
||10:07
−
||'''fontsize 28'''  sets the font size used by print.  
+
||'''fontsize 28'''  sets the font-size used by print.  
 
|-
 
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||10:13
 
||10:13
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||'''print $C''' prints cube root of a number.  
+
||'''print $C''' prints cube-root of a number.  
 
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||10:19
 
||10:19
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|-
 
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||10:23
 
||10:23
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||Let's Run the program
+
||Let's '''run''' the program
  
 
|-
 
|-
 
||10:27
 
||10:27
−
||Let's enter 343 for i and click OK
+
||Let's enter 343 for 'i' and click '''OK'''
 
|-
 
|-
 
||10:34
 
||10:34
−
||cube root of 343 = 7 is be displayed on canvas.
+
||Cube root of 343 = '''7''' is displayed on canvas.
 
|-
 
|-
 
||10:40
 
||10:40
−
||With this we  come to the end of this tutorial.
+
||With this, we  come to the end of this tutorial.
 
|-
 
|-
 
||10:43
 
||10:43
−
||let us summarize.
+
||Let us summarize.
 
|-
 
|-
 
||10:46
 
||10:46
−
||In this tutorial, we have learnt
+
||In this tutorial, we have learnt:
 
|-
 
|-
 
||10:49
 
||10:49
−
||Programming concepts  
+
||* Programming concepts  
  
 
|-
 
|-
 
||10:52
 
||10:52
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|| Use of sqrt function
+
||* Use of sqrt function
  
 
|-
 
|-
 
||10:55
 
||10:55
−
|| Use of print command  
+
||* Use of print command  
  
 
|-
 
|-
 
||10:57
 
||10:57
−
||Using KTurtle editor and canvas.
+
||* Using KTurtle editor and canvas.
 
|-
 
|-
 
||11:02
 
||11:02
−
||As an assignment, I would like you to use basic programming commands to find ...
+
||As an assignment, I would like you to use basic programming commands to find=
 
|-
 
|-
 
||11:08
 
||11:08
−
||Cube of a number  
+
||* Cube of a number  
  
 
|-
 
|-
 
||11:11
 
||11:11
−
|| nth root of a number
+
||* nth root of a number.
 
|-
 
|-
 
||11:15
 
||11:15
−
||Watch the video available at this URLhttp://spoken-tutorial.org/What is a Spoken Tutorial  
+
||Watch the video available at this URL:
 +
http://spoken-tutorial.org/What_is_a_Spoken-Tutorial  
  
 
|-
 
|-
 
||11:19
 
||11:19
−
||It summarises the Spoken Tutorial project  
+
||It summarizes the Spoken Tutorial project.
  
 
|-
 
|-
 
||11:22
 
||11:22
−
||If you do not have good bandwidth, you can download and watch it  
+
||If you do not have good bandwidth, you can download and watch it.
 
|-
 
|-
 
||11:27
 
||11:27
−
||The Spoken Tutorial Project Team :
+
||The Spoken Tutorial Project team:
  
 
|-
 
|-
 
||11:29
 
||11:29
−
||Conducts workshops using spoken tutorials  
+
||* Conducts workshops using spoken tutorials.
  
 
|-
 
|-
 
||11:32
 
||11:32
−
||Gives certificates to those who pass an online test  
+
||* Gives certificates to those who pass an online test.
  
 
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||11:44
 
||11:44
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||Spoken Tutorial Project is a part  of the Talk to a Teacher project.
+
||'''Spoken Tutorial''' project is a part  of the '''Talk to a Teacher''' project.
  
 
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||11:55
 
||11:55
−
||More information on this Mission is available at this http://spoken-tutorial.org/NMEICT-Intro ].
+
||More information on this mission is available at this link:
 +
http://spoken-tutorial.org/NMEICT-Intro  
  
 
|-
 
|-
 
||11:59
 
||11:59
−
||This is Madhuri Ganpathi, from IIT Bombay signing off.Thank you for joining.
+
||This is Madhuri Ganpathi from '''IIT Bombay''', signing off. Thank you for joining.
 
|-
 
|-

Revision as of 16:40, 18 September 2015

Time Narration
00:01 Hello Everybody.
00:03 Welcome to this tutorial on Programming concepts in KTurtle.
00:08 In this tutorial, we will learn how to:
00:12 * Write a program in 'KTurtle'
00:15 * Use variables to store user input
00:18 * Use 'print' command to print on canvas
00:22 * Comment a line.
00:24 To record this tutorial, I am using:
  • Ubuntu Linux OS Version 11.10
  • KTurtle version 0.8.1 beta.
00:37 We assume that you have basic working knowledge of KTurtle.
00:43 If not, for relevant tutorials, please visit our website: http://spoken-tutorial.org
00:49 Before proceeding, we will discuss some basic information about KTurtle.
00:55 "Turtle" displayed on the canvas is called "sprite".
01:00 "Sprite" is a small image that moves around the screen. e.g. Cursor is a sprite.
01:10 "spritehide" command hides Turtle from canvas.
01:15 "spriteshow" command shows Turtle, if it is hidden.
01:21 "clear" command cleans all drawings from canvas.
01:27 In KTurtle,
01:29 "$" sign is a container of variables.
01:34 "*" (asterisk) is used for multiplication of two numbers.
01:41 "^" (caret) raises a power of the number.
01:45 "#" (hash) sign comments a line written after it.
01:50 "sqrt" is an inbuilt function to find square root of a number.
01:58 Let's open new KTurtle Application.
02:02 Click on Dash home >> Media Apps.
02:07 Under Type, choose Education and KTurtle.
02:13 KTurtle application opens.
02:20 We can also open KTurtle using terminal.
02:24 Press Ctrl+Alt+T simultaneously to open the terminal.
02:30 Type KTurtle and press Enter, 'KTurtle' Application opens.
02:41 Let me type and explain the program code.
02:46 Let me zoom into the program text, it may possibly be a little blurred.
02:55 #program to find square of a number. Press Enter.
03:15 "#" sign comments a line written after it.
03:19 This means, this line will not be executed while running the program. Press Enter.
03:29 reset
03:30 reset command sets Turtle to default position. Press Enter.
03:38 $i= ask within double quotes enter a number for i and click OK.
03:58 "$i" is a variable to store user input.
04:03 “ask” command asks for user input to be stored in variable. Press Enter.
04:11 “fontsize” space 28.
04:17 fontsize sets the font-size used by print.
04:20 fontsize takes number as input, set in pixels.
04:27 print $i*$i
04:36 print $i*$i calculates and prints square of a number. press Enter.
04:45 spritehide
04:48 spritehide hides Turtle from canvas.
04:53 Let us run the program now.
04:56 Click on the Run button on the toolbar to start execution of the code in the editor.
05:03 It shows a list of execution speeds.
05:07 Full speed (no highlighting and inspector)
05:10 Full speed,

slow, slower, slowest and step-by-step.

05:17 Let me run the code at slow speed.
05:21 An input bar appears.
05:23 Let's enter 15 for 'i' and click OK.
05:29 Square of '15' = 225 is displayed on the canvas.
05:35 Let's now learn to find nth power of a number through a program.
05:42 I already have program in a text editor.
05:46 Let me copy the program from text editor and paste it into KTurtle editor.
05:56 Please pause the tutorial here and copy the program into your KTurtle editor.
06:03 Let me zoom into the program text.
06:07 Explain the program.
06:09 # sign comments a line written after it.
06:13 reset command sets Turtle to default position.
06:18 $i and $n are variables to store user input.
06:25 “ask” command asks for user input to be stored in variables.
06:31 fontsize 28 sets the font size used by print.
06:37 Fontsize takes number as input, sets in pixels.
06:43 print ($i^$n) calculates & prints nth power of a number ($i).
06:52 spritehide hides Turtle from canvas.
06:57 Let's run the program.
07:00 Let's enter 5 for 'i' and click OK
07:05 Let's enter 4 for 'n' and click OK. 5^4=625 is displayed on the canvas.
07:18 Next, let's use inbuilt “sqrt” function in a program to find square root of a number.
07:27 Let me copy the code from editor and paste it into KTurtle's editor.
07:35 Please pause the tutorial here and copy the program into your KTurtle editor.
07:43 Let me zoom the program text, it may possibly be a little blurred.
07:49 Let me explain the code.
07:52 '#' sign comments a line written after it.
07:57 reset command sets Turtle to default position.
08:02 $i is a variable to store user input.
08:07 fontsize 28 sets the font size used by print.
08:12 print sqrt $i prints square root of a number.
08:19 spritehide hides Turtle from canvas.
08:24 Let me run the program now.
08:28 Let's enter 169 for 'i' and click OK.
08:34 Square root of 169 = 13 is displayed on canvas.
08:39 Let's run again.
08:42 Let's enter -169 for 'i' and click OK.
08:49 If we enter negative number, output is 'nan'. It means "not a number".
08:56 As square root of negative number is not a real number.
09:02 Let's next evaluate cube-root of a positive number through a program.
09:08 Let me copy the program from editor and paste it into KTurtle's editor.
09:19 Please pause the tutorial here and copy the program into your KTurtle editor.
09:25 Let me zoom into the program text, it may possibly be a little blurred.
09:31 Let me explain the program.
09:35 '#' sign comments a line written after it.
09:38 Please note this is a single line comment.
09:42 Every comment must be preceded by a '#' sign.
09:48 reset command sets the Turtle to default position.
09:53 $i and $C are variables to store user input.
09:59 $C=($i)^(1/3) calculates cube-root of a number.
10:07 fontsize 28 sets the font-size used by print.
10:13 print $C prints cube-root of a number.
10:19 spritehide hides Turtle from canvas.
10:23 Let's run the program
10:27 Let's enter 343 for 'i' and click OK
10:34 Cube root of 343 = 7 is displayed on canvas.
10:40 With this, we come to the end of this tutorial.
10:43 Let us summarize.
10:46 In this tutorial, we have learnt:
10:49 * Programming concepts
10:52 * Use of sqrt function
10:55 * Use of print command
10:57 * Using KTurtle editor and canvas.
11:02 As an assignment, I would like you to use basic programming commands to find=
11:08 * Cube of a number
11:11 * nth root of a number.
11:15 Watch the video available at this URL:

http://spoken-tutorial.org/What_is_a_Spoken-Tutorial

11:19 It summarizes the Spoken Tutorial project.
11:22 If you do not have good bandwidth, you can download and watch it.
11:27 The Spoken Tutorial Project team:
11:29 * Conducts workshops using spoken tutorials.
11:32 * Gives certificates to those who pass an online test.
11:35 For more details, please write to contact@spoken-tutorial.org
11:44 Spoken Tutorial project is a part of the Talk to a Teacher project.
11:48 It is supported by the National Mission on Education through ICT, MHRD, Government of India.
11:55 More information on this mission is available at this link:

http://spoken-tutorial.org/NMEICT-Intro

11:59 This is Madhuri Ganpathi from IIT Bombay, signing off. Thank you for joining.

Contributors and Content Editors

Kaushik Datta, Madhurig, PoojaMoolya, Pratik kamble, Sandhya.np14, Sneha

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