mathematical modelling for OS X + good tutorial

Found this modelling tools for Apple OS X users. Very good tutorial for db marketeers and or data modelling consultants to want to stay a step in the lead. Also to refresh your statistics in a consulting manner. Very readable tutorial!

Robocat I

little busy at work but...

I have taken some pictures of the old RoboCat I will post these soon. Furthermore I bought a Fox board Very cool small computerboard! To be the brains of my new robocat II