spdt on DSTs

spdt

Occurrences on Diagonal Star Tables

T	T1	T2	T3	T4	(T5)	T6	T7	T8	T9	(T10)	(T11)	T12
K	(K0)	(K1)	K2	(K3)	(K4)	(K5)	(K6)	(K7)	(K8)	(K9)	(K10)	(K11)

Legend
	Present
( )	Absent because the table ended, is fragmentary or is damaged
	Absent for unknown reasons, never was present

This decan is associated with both the T and K families. It is expected to occur on all T-type DSTs except T5 which finishes too early. It appears on all expected tables except the badly-damaged T10 and T11. Of the K tables, only K2 contains enough columns to preserve it.

On the T-type ideal table, the spdt diagonal begins on (18,12). This is consistent with spdt appearances on actual tables T1, T2, T3, T7, T8, and T9. The occurrence on these tables invariably follow the (18,12) diagonal with only the exception of T8, where the diagonal is broken along row 7 by the omission of spdt. The diagonal is successfully continued above the horizontal strip until the top row, where it appears in (26,1) rather than (29,1). Of the remaining tables, the decan only occurs in two locations on T4, along the (17,12) diagonal. On T6, the decan mostly follows the (18,11) diagonal with some exceptions. The decan briefly appears in T12 along the (12,19) diagonal before the table ends with column 21.

On the K-type ideal table, the spdt diagonal begins with (25,12). This area is too far left on the ideal table to appear in any of the known K-type tables and fragments. However, the decan does occur on K2, which is disordered for all decans.

Ideal T