CompuServe Messages

Robert, Here's a few messages I dusted off from my saved archives. This very subject was discussed just a short while back and I found it very interesting. The first couple of messages describe briefly what is happening and how to work around the 'roll' effect. The later messages give a brief history of quaternions and is kinda neat. Anyhoo, hope this is what you are asking for, and hopefully not too much of a response! See Ya! Kevin