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Command
Program
↗ ↙
run
stop
clear

Code examples
fd 100
forward 100 pixels
bk 100
back 100 pixels
lt 90
rotate 90 degrees to the left
rt 90
rotate 90 degrees to the right
home
move to the center

Demos

colors, disk, fern, house, shell, square, star, tree
empty
close

Code examples

fd 100
forward 100 pixels
bk 100
back 100 pixels
lt 90
rotate 90 degrees to the left
rt 90
rotate 90 degrees to the right
home
move to the center
clean
clear the screen
cs
go home and clear screen
pu
pen up (don't draw)
pd
pen down (draw)
ht
hide turtle
st
show turtle
setpencolor 0
select black color
print "text
print text on screen
ct
clear text
setxy 50 50
move to position
setx 50
move horizontally
sety 50
move vertically
seth 90
set turtle to 90 degrees
arc 360 100
draw a circle around turtle
repeat 36 [ fd 5 rt 10 ]
draw a circle
fd random 100
forward random length
close Programs / Procedures all commands / reference
close

Programs / Procedures

to programname :variable
   for [ a 1 10 ] [ fd :a rt 2 ]
   rt 90
   fd random 100
   lt 45
   wait 30
   fd :variable
   if :variable > 1 [
      programname :variable - 1
   ]
end
 
programname 10
You may create your own reusable 'procedures' (or 'programs') using the 'to' and 'end' commands.
Procedures may also include one or more variables.
Procedures can also be used recursively, which mean that they can call themselves.
Once a procedure has been entered, it can be launched like a simple command.
close
close

All commands / Reference