Re: spirals

["Daniel Ajoy" <da.ajoy@xxxxxxxxx>]

On 4 Jan 2007 at 10:40, Russell, Ken wrote:

> I did a bit of research on spirals on the web and found that      
> there are many varieties. I'm looking for a simple one that I     
> can explain to 6th and 7th grade HCL students and that they can   
> experiment with.                                                  
>
> How would I do this using a formula?                              

to spiral
dotimes [theta 2000] [
 dot.at.distance :theta / 10
 seth :theta
]
end

to dot.at.distance :d
pu fd :d
pd fd 0
pu setpos [0 0]
end

> How about a spiral using a square?

to spiral
dotimes [theta 100] [
 square :theta 
 seth :theta * 10
]
end

to square :side
repeat 4 [fd :side rt 90]
end

 
Daniel
OpenWorld Learning