A processor calculates an estimated position of each of {TAIL ~ the plurality} of magnets in {HEAD ~ a three dimensional space} and calculates values related to a predicted magnetic field strength through at least a portion of the sensors based on the estimated positions of the plurality of magnets 
A processor calculates an estimated position of each of { TAIL ~ the plurality } of magnets in { HEAD ~ a three dimensional space } and calculates values related to a predicted magnetic field strength through at least a portion of the sensors based on the estimated positions of the plurality of magnets
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH