providing the adjusted control input to the DUT via a feedback loop, wherein said {HEAD ~ control input} is continually adjusted by {TAIL ~ said finite amount} until the comparing yields the first result 
providing the adjusted control input to the DUT via a feedback loop , wherein said { HEAD ~ control input } is continually adjusted by { TAIL ~ said finite amount } until the comparing yields the first result
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH