I know that I can use the
Notation package to define my own custom notation. This works great for
StandardForm output, but I would like the notation to apply when I convert it to TraditionalForm`. For example:
Notation[△ θ_ ⟸ △[θ_]]
This tells Mathematica that if it finds a laplacian operator, mathematica should display it without the brackets. This works fine in
StandardForm. However, if I use
TraditionalForm, then Mathematica inserts parentheses instead of following the rule.
How can I make the rule apply to