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= 123 , and to the three vowels in this part of the alphabet, aei , whereas the even digits 4, 6, 8, 0 are right angles.

The next ten letters, k-t, are identical to a-j respectively, apart from the addition of a dot at position 3 (red dots in the bottom left corners of the cells in the table below): :

:

The next ten letters (the next "decade") are the same again, but with dots also at both position 3 and position 6 (green dots in the bottom rows of the cells in the table above).

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