calculating a new filter output by adding the row value stored in memory location 2N+1 to {TAIL ~ the filter output} stored in the memory storage device and subtracting {HEAD ~ the value} stored in memory location 0 
calculating a new filter output by adding the row value stored in memory location 2N+1 to { TAIL ~ the filter output } stored in the memory storage device and subtracting { HEAD ~ the value } stored in memory location 0
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH