I have various forms of these function tables. First tables are shown like the one I've attached. Later chapters omit the shaded area and just show enlarged shifted column(s). What's the best way to deal with this situation? In the attached braille file, I added the TN that I've included for the possible solution, but I'm not happy with either--brailled table solution or the TN. Please advise.
I think your tn could handle the shaded area by stating that is omitted and that the 3rd column is offset to represent the intervals between each entry in the first column. Otherwise, your table looks ok. The expression at the end of the third column heading is a delta d -- not triangle d.