The position of the device determined by the processor 208 includes both the location and orientation of the device with respect to the origin and may be referred to as {HEAD ~ the “absolute position}” of {TAIL ~ the device} 
of
The position of the device determined by the processor 208 includes both the location and orientation of the device with respect to the origin and may be referred to as { HEAD ~ the “ absolute position } ” of { TAIL ~ the device }
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 OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL