On 17 December 2012 02:59, Gene Heskett <[email protected]> wrote: > The math I was able to find seems complex, some of it might even have had a > very time consuming power series. I don't think we have, in a millisecond > time frame of the servo-thread, enough time to fool around doing even a > lookup table method of doing the nominally 2.5 power multiplier,
Lookup tables are fast. We evaluate 4000 of them at a time in the engine calibration, typically multiplying all the answers together. Those are 2D too. It is quite likely that an arbitrary-order polynomial could be handled without too much difficulty too. But a lookup can do anything that a polynomial can do, and more (can be discontinuous) -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
