With these coefficients, {HEAD ~ the iteration method} saves {TAIL ~ the number} of multiplications as well as additions and thus the filters speed is increased 
saves
With these coefficients , { HEAD ~ the iteration method } saves { TAIL ~ the number } of multiplications as well as additions and thus the filters speed is increased
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH