Difference between revisions of "KTurtle/C3/Programming-Concepts/English"
| Line 6: | Line 6: | ||
||Hello Everybody. | ||Hello Everybody. | ||
| − | Welcome to this tutorial on Programming concepts in KTurtle. | + | Welcome to this tutorial on '''Programming concepts''' in '''KTurtle'''. |
|- | |- | ||
||Slide Number 2 | ||Slide Number 2 | ||
| − | Learning Objectives | + | '''Learning Objectives''' |
|| | || | ||
In this tutorial, we will learn how to | In this tutorial, we will learn how to | ||
| Line 26: | Line 26: | ||
|| Slide Number 3 | || Slide Number 3 | ||
| − | System Requirement | + | '''System Requirement''' |
| Line 37: | Line 37: | ||
||Slide number 4 | ||Slide number 4 | ||
| − | Pre-requisites | + | '''Pre-requisites''' |
|| | || | ||
We assume that you have basic working knowledge of '''KTurtle. ''' | We assume that you have basic working knowledge of '''KTurtle. ''' | ||
| Line 49: | Line 49: | ||
|- | |- | ||
|| | || | ||
| − | ||Before proceeding, we will discuss some basic information about KTurtle. | + | ||Before proceeding, we will discuss some basic information about '''KTurtle'''. |
|- | |- | ||
||Slide Number 5 | ||Slide Number 5 | ||
| − | Sprite | + | '''Sprite ''' |
| − | ||Turtle displayed on the canvas is called sprite. | + | ||"Turtle" displayed on the canvas is called "sprite". |
| − | Sprite is a small image that moves around the screen. | + | "Sprite" is a small image that moves around the screen. |
e.g. Cursor is a sprite. | e.g. Cursor is a sprite. | ||
| Line 62: | Line 62: | ||
||Slide Number 6 | ||Slide Number 6 | ||
| − | sprite Commands | + | '''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 | ||Slide Number 7 | ||
Symbols | Symbols | ||
| − | ||In KTurtle, | + | ||In '''KTurtle''', |
| − | $ sign is a container of variables. | + | "$ " sign is a container of variables. |
| + | |||
"*"(asterisk) is used for multiplication of two numbers. | "*"(asterisk) is used for multiplication of two numbers. | ||
| + | |||
"^"(caret) raises the power of a number. | "^"(caret) raises the power of a number. | ||
| + | |||
"#"(hash) sign comments a line written after it. | "#"(hash) sign comments a line written after it. | ||
| + | |||
"sqrt" is an inbuilt function to find square root of a number. | "sqrt" is an inbuilt function to find square root of a number. | ||
|- | |- | ||
||Switch to Kturtle Application | ||Switch to Kturtle Application | ||
| − | Dash home >>Media Apps>>Under Type | + | Dash home >>Media Apps>>Under Type >>Education>>KTurtle |
| − | + | ||
| − | ||Let's open new KTurtle Application | + | ||Let's open new '''KTurtle''' Application |
Click on Dash home >> Media Apps. | Click on Dash home >> Media Apps. | ||
Revision as of 17:22, 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.
|
