I guess we need terse, distinct pronunciations for each of the symbols. I heard a Physics youtuber say "nabla" the other day -- I didn't know that symbol had a name.

On the other hand, conventions for reading formulae out loud are difficult and prone to ambiguity.

One more idea. Even in ASCII, there are programming language notations that are hard to say. What is Go's "<-" symbol called? "Arrow"? "Send or receive"? What about C++'s "::"? "Colon colon"?

It is a neat linguistic puzzle to assign sounds to “{ ⊃ ⍵ ⊇⍨ ↑⍒≢¨ ⍵ /⍨ 2≥ (⊂"aeiou") (+/∊⍨)¨ ⍵ }”.