This version of Logo is more powerful than the Level 1 version.
Example: setpos[ 0 0 ]
replaces CT (Centre turtle).
Example: seth 45
rotates the turtle to a bearing of 045o.
Example: setpencolor "red
replaces pc (pen colour)
Without moving the turtle, draws an arc centered on the turtle, starting at the turtle's heading.
Example: arc 180 100
setpencolor "yellow fill will flood fill the turtle's current position with yellow.
cs pu setpos [0 -150] repeat 3 [pd seth 300 arc 60 100 fd 100 pu bk 100 seth 0 fd 100] pd
Many other online mathematical activities are available free at
Level 1 - Basic use of Logo commands to draw shapes
Level 2 - Some more Logo commands to draw more complex shapes
Level 3 - Use Logo procedures to draw more complex diagrams
History - See all of the commands you have typed into Logo this session.
More on Angles including lesson Starters, visual aids and investigations.
David Eisenstat, US
See how complex designs can be produced with only a small amount of code. This competition winner is called Dahlia:
repeat 8 [rt 45 repeat 6 [repeat 90 [fd 2 rt 2] rt 90]]
The 6 can be replaced with 1 to 7 for other flowers.