Difference between revisions of "KTurtle/C3/Programming-Concepts/English"
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||Press CTRL+ALT+T >> open the terminal >>type kturtle >>press enter to open | ||Press CTRL+ALT+T >> open the terminal >>type kturtle >>press enter to open | ||
| − | ||We can also open KTurtle Application from the terminal. | + | ||We can also open '''KTurtle''' Application from the '''terminal'''. |
| − | Press CTRL+ALT+T simultaneously to open the terminal. | + | Press '''CTRL+ALT+T''' simultaneously to open the terminal. |
| − | Type KTurtle and press enter, KTurtle Application opens. | + | Type KTurtle and press enter, '''KTurtle''' Application opens. |
|- | |- | ||
|| | || | ||
| Line 102: | Line 102: | ||
||Let me zoom the program text, it may possibly be a little blurred. | ||Let me zoom the program text, it may possibly be a little blurred. | ||
|- | |- | ||
| − | ||#program to find square of a number | + | ||'''#program to find square of a number''' |
Highlight # | Highlight # | ||
| − | ||#program to find square of a number. Press enter | + | ||'''#program to find square of a number'''. Press enter |
"#" sign comments a line written after it. | "#" sign comments a line written after it. | ||
This means, this line will not be executed while running the program. Press enter. | This means, this line will not be executed while running the program. Press enter. | ||
|- | |- | ||
| − | ||reset | + | ||'''reset''' |
Highlight reset | Highlight reset | ||
| − | ||reset | + | ||'''reset''' |
| + | |||
reset command sets Turtle to default position. Press enter. | reset command sets Turtle to default position. Press enter. | ||
|- | |- | ||
| − | ||$i= ask "enter any number for i and click OK" | + | ||'''$i= ask "enter any number for i and click OK" ''' |
Highlight $i | Highlight $i | ||
|| | || | ||
| − | $i= ask within double quotes enter any number for i and click OK. | + | '''$i= ask''' within double quotes '''enter any number for i and click OK'''. |
| − | $i is a variable to store user input. | + | "$i" is a variable to store user input. |
|- | |- | ||
| − | ||Highlight ask | + | ||Highlight '''"ask"''' |
| − | ||“ask” command asks for user input to be stored in variable | + | ||'''“ask”''' command asks for user input to be stored in variable |
press enter | press enter | ||
|- | |- | ||
| − | ||fontsize 28 | + | ||'''fontsize 28''' |
| − | Highlight fontsize 28 | + | Highlight '''fontsize 28''' |
| − | ||“fontsize” space 28 press enter. | + | ||'''“fontsize”''' space '''28''' press enter. |
| − | fontsize 28 sets the font size used by print. | + | '''fontsize 28''' sets the font size used by print. |
Fontsize takes number as input, set in pixels. | Fontsize takes number as input, set in pixels. | ||
|- | |- | ||
| − | ||print $i*$i | + | ||'''print $i*$i''' |
| − | Highlight print $i*$i | + | Highlight '''print $i*$i''' |
| − | ||print $i*$i | + | ||'''print $i*$i''' |
| − | print $i*$i calculates and prints square of a number. | + | '''print $i*$i''' calculates and prints square of a number. |
press enter. | press enter. | ||
|- | |- | ||
| − | ||spritehide | + | ||'''spritehide''' |
| − | Highlight spritehide | + | Highlight '''spritehide''' |
| − | ||spritehide | + | ||'''spritehide''' |
| − | spritehide hides Turtle from canvas. | + | |
| + | '''spritehide''' hides '''Turtle''' from canvas. | ||
|- | |- | ||
||Run the program code | ||Run the program code | ||
||Let us Run the program now. | ||Let us Run the program now. | ||
| − | Click on Run button on the toolbar to start execution of the code in the editor. | + | Click on '''Run''' button on the toolbar to start execution of the code in the editor. |
It shows a list of execution speeds. | It shows a list of execution speeds. | ||
| − | Full speed(no highlighting and inspector) | + | '''Full speed(no highlighting and inspector)''' |
| − | Full speed, | + | '''Full speed''', |
| − | slow, | + | '''slow''', |
| − | slower, | + | '''slower''', |
| − | slowest and | + | '''slowest''' and |
| − | step-by-step. | + | '''step-by-step'''. |
|- | |- | ||
||Enter '15' for i | ||Enter '15' for i | ||
| + | |||
Square of 15 =225 | Square of 15 =225 | ||
| − | ||Let me run the code at slow speed. | + | ||Let me run the code at '''slow''' speed. |
| − | An input bar appears | + | An "input bar" appears |
let's enter 15 for i and click OK | let's enter 15 for i and click OK | ||
square of '15' = '225' is displayed on the canvas. | square of '15' = '225' is displayed on the canvas. | ||
| Line 169: | Line 172: | ||
||I already have program in a text editor. | ||I already have program in a text editor. | ||
|- | |- | ||
| − | ||#Program evaluates nth power of a number | + | ||'''#Program evaluates nth power of a number |
reset | reset | ||
$i= ask "enter number for i and click OK" | $i= ask "enter number for i and click OK" | ||
| Line 175: | Line 178: | ||
fontsize 28 | fontsize 28 | ||
print ($i^$n) | print ($i^$n) | ||
| − | spritehide | + | spritehide''' |
| − | ||Let me copy the code from editor and paste it into KTurtle editor. | + | ||Let me copy the code from editor and paste it into '''KTurtle''' editor. |
| − | Please pause the tutorial here and copy the program into your KTurtle editor. | + | Please pause the tutorial here and copy the program into your '''KTurtle''' editor. |
|- | |- | ||
Revision as of 17:33, 24 December 2012
| Visual Cue | Narration |
|---|---|
| Slide Number 1 | Hello Everybody.
Welcome to this tutorial on Programming concepts in KTurtle. |
| Slide Number 2
Learning Objectives |
In this tutorial, we will learn how to
|
| Slide Number 3
System Requirement
|
To record this tutorial, I am using,
Ubuntu Linux OS Version 11.10. KTurtle version 0.8.1 beta. |
| Slide number 4
Pre-requisites |
We assume that you have basic working knowledge of KTurtle. If not, for relevant tutorials, please visit our website, |
| Before proceeding, we will discuss some basic information about KTurtle. | |
| Slide Number 5
Sprite |
"Turtle" displayed on the canvas is called "sprite".
"Sprite" is a small image that moves around the screen. e.g. Cursor is a sprite. |
| Slide Number 6
sprite Commands |
"spritehide" command hides Turtle from canvas.
"spriteshow" command shows Turtle if it is hidden. "clear" command cleans all drawings from canvas. |
| Slide Number 7
Symbols |
In KTurtle,
"$ " sign is a container of variables. "*"(asterisk) is used for multiplication of two numbers. "^"(caret) raises the power of a number. "#"(hash) sign comments a line written after it. "sqrt" is an inbuilt function to find square root of a number. |
| Switch to Kturtle Application
Dash home >>Media Apps>>Under Type >>Education>>KTurtle |
Let's open new KTurtle Application
Click on Dash home >> Media Apps. Under Type, Choose Education and KTurtle. KTurtle application opens. |
| Press CTRL+ALT+T >> open the terminal >>type kturtle >>press enter to open | We can also open KTurtle Application from the terminal.
Press CTRL+ALT+T simultaneously to open the terminal. Type KTurtle and press enter, KTurtle Application opens. |
| Let me type and explain the program code. | |
| Let me zoom the program text, it may possibly be a little blurred. | |
| #program to find square of a number
Highlight # |
#program to find square of a number. Press enter
"#" sign comments a line written after it. This means, this line will not be executed while running the program. Press enter. |
| reset
Highlight reset |
reset
reset command sets Turtle to default position. Press enter. |
| $i= ask "enter any number for i and click OK"
Highlight $i |
$i= ask within double quotes enter any number for i and click OK. "$i" is a variable to store user input. |
| Highlight "ask" | “ask” command asks for user input to be stored in variable
press enter |
| fontsize 28
Highlight fontsize 28 |
“fontsize” space 28 press enter.
fontsize 28 sets the font size used by print. Fontsize takes number as input, set in pixels. |
| print $i*$i
Highlight print $i*$i |
print $i*$i
print $i*$i calculates and prints square of a number. press enter. |
| spritehide
Highlight spritehide |
spritehide
spritehide hides Turtle from canvas. |
| Run the program code | Let us Run the program now.
Click on Run button on the toolbar to start execution of the code in the editor. It shows a list of execution speeds. Full speed(no highlighting and inspector) Full speed, slow, slower, slowest and step-by-step. |
| Enter '15' for i
Square of 15 =225 |
Let me run the code at slow speed.
An "input bar" appears let's enter 15 for i and click OK square of '15' = '225' is displayed on the canvas. |
| Let's now learn to find nth power of a number through a program. | I already have program in a text editor. |
| #Program evaluates nth power of a number
reset $i= ask "enter number for i and click OK" $n=ask "enter number for n and click OK" fontsize 28 print ($i^$n) spritehide |
Let me copy the code from editor and paste it into KTurtle editor.
|
