In this circuit, {HEAD ~ the number} of {TAIL ~ guard bits} required to guarantee round off accuracy is only two 
of
In this circuit , { HEAD ~ the number } of { TAIL ~ guard bits } required to guarantee round off accuracy is only two
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH