Combined Filters ATrax Root Sums The ATrax Root Sums (ATX-RS) is a so called "combined filter", a combination of two filters:
ATrax (ATX), for Alternate or Alternative Tracking, has to be seen an improvement of the VTracs (VTX), as it combines digits logically rather than by a simple adding of 5 to the digit. Since the conversions do not have to be done by hand any longer, other combinations can be done with simple tools online rather than with pencil and paper. 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 ATrax Root Sums filter select one of the links below for a step by step example.
ATrax Root Sums
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