Combined Filters Neighbors Root Sums The Neighbors Root Sums (NB-RS) is a so called "combined filter", a combination of two filters:
Neighbors (NB) is yet another alternative to the old VTracs (VTX). Instead of combining digits by adding 5 it selects the all even digits with the next odd digit up, 0 with 1, 2 with 3 all the way to 8 with 9. It is another efficient way to combine an odd with an even digit. The Root Sums filter is a so called "math filter". Math filters are created through calculations. You get the root sum of a number by first adding up the digits within that number and then adding up the digits of each sum continuously until only one digit is left. To show you how to calculate the Neighbors Root Sums filter select one of the links below for a step by step example.
Neighbors Root Sums
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