WARNING - You may need to press "Halt" to stop some of these procedures!!
You might like to begin by thinking about two procedures:
TO COUNTUP :X PR :X COUNTUP :X + 3 END
Try COUNTUP 2
TO COUNTDOWN :X PR :X COUNTDOWN :X - 2 END
Try COUNTDOWN 189
As before, discuss with others and try evaluating the procedures BEFORE copying them out and experimenting further.
Now, here are two more procedures you might like to think about:
TO FAC :X :A PR :A FAC :X + 1 :X * :A END
Try FAC 11
TO MULTI :X :A PR :A MULTI :X :X + :A END
Try MULTI 2 0; MULTI 2 1 ...etc
Can all the sequences of number that you know, be programmed in LOGO?
Why not submit other procedures that you have used to generate other special number sequences?
...the challenge is to program ELEGANTLY the drawing of the smaller pentagrams onto the 'arms' of the larger one, as shown below.