Trinanunqual Logarithmic Circle

'Trinanuqual' is the Systematic Dozenal Nomenclature for base three-dozen (from 'tri(n)-a(n)-unqua' for 'three-times-dozen'), or in decimal, base thirty six. The circle is divided according to a base three-dozen logarithmic progression.

Trinanunqual is the square of hexal (base 6), so it is not surprising that the logarithmic circle is a double-hexade, with the notch for 6 splitting the circle into two halves (6 is the logarithmic half, the square root). Numerically, one trinanunqual digit (which can be represented by the numerals 0 to 9 and then the letters A to Z) stands for two hexal (numerals 0 to 5) digits.