In yet another embodiment, shown in FIG 8C, {HEAD ~ the display} 106 provides {TAIL ~ a different indicator}, such as an arrow 260, to provide a visual indication of the location α of the magnet 120 
provides
In yet another embodiment , shown in FIG 8C , { HEAD ~ the display } 106 provides { TAIL ~ a different indicator } , such as an arrow 260 , to provide a visual indication of the location α of the magnet 120
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH