Maxima style



Hi,

I'm working on improving my Maxima style. (:-)
Can you tell me if this case is a good one ?

http://commons.wikimedia.org/w/index.php?title=Image:Iray.png

This code is much shorter, I can do more but I think it would be to much 
obfuscated.

One can see old version of code in history, for example :

http://commons.wikimedia.org/w/index.php?title=Image:Iray.png&oldid=15040110



Regards


Adam