Any traditional (binary) Tree, described by a set of production rules, for example

Start → a, b

a → 'p'

b → c, d

c → 'r'

d → 'e'

translates into at least 2 matrix trees:

In both trees, each Node typically owns 2 Grid Lines.

The Notation facilitates each node to fire projectiles on the (supposed) axes.

Elke rasterKnoop heeft typisch twee eigen tralies.

De rasternotatie maakt eenduidige projectie mogelijk op de (veronderstelde) assen, horizontaal en verticaal.

Given the Matrix Notation, note that both matrix trees must be the result of a process.

In the  PRE tree, the R-node was rendered in the first free position available. Evidently, this happened after rendering the first node, P.

In the REP-tree, R was rendered first, followed by E, followed by P.

So, given the notation, there is an order, a sequence in "firing" the production rules.

Nice!