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