Logo (programming language) facts for kids
- The article about graphical symbols is at Logo
In 1969, it was used to control a Floor Turtle. Commands were added to send the turtle forwards and backwards, and to turn the turtle to left or right. This turtle had pen with different colors. When it moved, it left a trail on the floor.
When a new version of Logo was developed to draw graphics on a screen, it used the same commands. This was called Turtle graphics.
There are 170 versions of Logo. Many of them are open source and free. There are three Logo textbooks that can be downloaded free. Logo is usually an interpreted language.
Load the Logo program. Type the next line in the command box.
print [Hello World!]
The computer replies.
Example Showing Graphics and Functional Programming
A spiral drawn using recursion. Using the editor, type in this new definition.
to spiral :size if :size > 30 [stop] ; a condition stop fd :size rt 15 ; many lines of action spiral :size *1.02 ; the tailend recursive call end
Type this in the command box.
Logo (programming language) Facts for Kids. Kiddle Encyclopedia.