"Bill, Thanks for the reply! Now the error between 1. F: force vector (centrifugal acceleration compensated) as measured by the 3 accelerometers 2. Z: the [0 0 1] vector in ground reference frame which is converted to the plane frame as rmat[6 7…"

"Bill, Thanks for sharing so much with the community. I have read the Rmatrix algorithm in your pitch-roll demo, a question is about the roll_pitch_drift() sub. Would you please explain the meaning of gplane x rbuff[6 7 8]? I understand you use this…"