> P.S. Making general comments about "math notation" is pretty dishonest argument. The math I studied was all commutative diagrams and blobs to represent manifo

> P.S. Making general comments about "math notation" is pretty dishonest argument. The math I studied was all commutative diagrams and blobs to represent manifolds; very little "infix operators" as far as I could tell. Mathematicians in general are flexible with notation (and definitions!) and will normally default to whatever is the loose consensus in their field :) It is exactly the point of what you are answering: mathematicians too use a flexible, ad-hoc notation. Presumably it is better for them. I don't see how it is dishonest, I find it quiet on point. I guess it needs less ink/chalk, and gives more visual clue about the structure and the content of the equation, than a more uniform, lisp like notation would.