User blog comment:Koteitan/Categorizing of the rule sets for all sub versions of bashicu matrix/@comment-11227630-20191122112930/@comment-11227630-20191124082502

Also, the indices are not consistent in this page.

In the "Common rules", the first subscripts of a', b and δ are the index of rows (1 means the uppermost thing), and the second subscripts are the index of columns (1 means the leftmost thing).

In "BM3.3" and "Ascending modification rules", first subscript is the index of columns and second subscript is the index of rows. So they are opposite.

What's worse, in "BM2-based", the two notations mixed, causing it unreadable.