Instead, the AC signal is effectively sampled and converted to digital form at {HEAD ~ a multitude} of {TAIL ~ points} in a cycle, say 360 points, one degree apart 
of
Instead , the AC signal is effectively sampled and converted to digital form at { HEAD ~ a multitude } of { TAIL ~ points } in a cycle , say 360 points , one degree apart
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH