{TAIL ~ The iteration process} continues until the predicted values match the measured values within a desired degree of {HEAD ~ tolerance} 
{ TAIL ~ The iteration process } continues until the predicted values match the measured values within a desired degree of { HEAD ~ tolerance }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD