thank you for your reply!

Actually Arduinos are getting more and more powerful, many people (like me) always use 32bit ARM Cortex cores, e.g., the Arduino Due (M3), the Zero/M0, and the M4 (by Adafruit and Teensy) feat. even a single-core fpu.

As to matrices, I don't have the mathematical skills to write Arduino matrix math code, and tbh, I also don't understand matrices actually at all, so I would need a ready-to-use lib for that, too, which works out of the box.

As to fp maths, please notice that (single-precision) float calculations are about twice as fast as double fp on ARM cpus, on an M4 even more than 10x as fast. So in that case explicite single-float calculations in your libs will be highly appreciated!

Would you kindly write a notification here in this topic if it's finished?

Gladly looking forward to your 6DOF-3D enhancements, thank you in advance!