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