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["This version of a \"Magic Square\" is based on a numerical sequence with the size 2n (in our case n being 2, 3 and 4). The sequence consists of spectral components with the frequencies 1, 3, 5, ... to (2n/2)-1. \"Frequency-shifting\" those spectral components by changing the stepwith between two elements of the sequence by odd factors from 1, 3, ... to (2n/2)-1 changes the spectral composition of the sequence while (as a result of its limited resolution in time) its power (=sum of all elements) remains constant. Each line and column of the square represents one such shift. In addition to that, setting the ratio of vertical and horizontal shift to the right value results in the diagonal elements being spaced at PI()/2 or 1/4*max. wavelengh of the spectral components. Under these conditions the sum of the diagonal elements is as well equal to the sum of elements in lines or columns."]