Logo Programming language
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Logo is an educational programming language developed in 1967, known for its turtle graphics feature, allowing users to control an on-screen cursor to create drawings through commands. It is designed for children, featuring basic commands, control structures, and various implementations, with 130 existing versions. Key commands include moving the turtle forward, backward, and turning, facilitating an interactive learning experience.
![• Turtle Moves forward
100 units and turns 90º 4
times.
FD 100 RT 90 FD 100 RT
90
FD 100 RT 90 FD 100 RT
90
REPEAT 4 [FD 100 RT 90]
11](https://image.slidesharecdn.com/nlp-171211185557/85/Logo-Programming-language-11-320.jpg){kind=logo}
Logo Programming language
- 1. Joy Protim 142002014 Dept. of CSE 1
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- 4. • History • Why the Turtle • Implementations • Features • Language Concept • Basic Commands • Example • Logo Keyboard • Reference 4
- 5. • Logo is an educational programming language • Designed in 1967 by Feurzeig, Papert & Solomon. • Turtle robot. • At BBN Paul Wexelblat developed a turtle named Irving. • Widely known for its use of turtle graphics. 5
- 6. • Turtle an On-Screen “CURSOR” • Directed to move around and draw by typing commands at computer • Designed to be programmed by children • Less expensive version created on computer 6
- 7. • 130 existing implementations. 7
- 8. • Graphics / Music • Extensible • Modularity • Interactivity • Flexibility 8
- 9. • Basic commands • Control Structures • while condition • until condition • repeat number 9 • Recursion • Scoping • Global variables • Local variables
- 10. • FD 100 - moves the turtle forward 100 units • BK 50 - moves the turtle back 50 units • RT 45 - turns the turtle 45 degrees to the right • LT 90 - turns the turtle 90 degrees to the left • Home - Returns the turtle to its origin • CS - Erases the screen 10
- 11. • Turtle Moves forward 100 units and turns 90º 4 times. FD 100 RT 90 FD 100 RT 90 FD 100 RT 90 FD 100 RT 90 REPEAT 4 [FD 100 RT 90] 11
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