{TAIL ~ The various movements} of the array may be reconstructed to determine {HEAD ~ a net two or three dimensional translation} 
{ TAIL ~ The various movements } of the array may be reconstructed to determine { HEAD ~ a net two or three dimensional translation }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD