While this is from 2015, it still made me feel like cataloguing all of the schisminas that are neglected by treating these pairs as actual 11M complements.My choice for a 1/4-apotome symbol is the 7-comma symbolbecause the exact relationship
+
=
is highly suggestive of
+
=
although this is only approximate in standard Sagittal.
Spartan:






Athenian:






Promethean:
























7:112·19n = 301327047:301334528, 0.31

5·17:121n = 61952:61965, 2.58


7:552n = 3024:3025, 4.07

23:112·13n = 50301:50336, 8.57


72·11n = 130977:131072, 8.93

55:232n = 1082565:1083392, 9.41


n/s boundary = half of 3s = 12.86


13:5·11·17s = 935:936, 13.17


192:5·7·11s = 788480:789507, 16.04

