Memorize matrix-positions; what for?
A visible 2D square-matrix is a figure that can be easily memorized. Concerned zero-start helps to memorize positions by columns, rows, diagonally, stepwise, digitally (a unit steps) and so on by consistently relating to said zero-start matrix position! It is like a computer relating all non-zero numbers to ‘a zero- sensing part’ of computer, which helps people to optimize “a self-skill to compute” as that of a computer!