It's interesting how many notational shortcuts mathematicians take would never be tolerated by a programmer.
For example the confusion as to whether f(x) is referring to the function f over the independent variable x versus the value of f given a value x.
It can get even worse in discussing something like coordinate transformations where you might have
I'm just watching a wonderful lecture series by Pavel Grinfeld and he's (understandably) going to great lengths to clarify in each expression (including the equivalence above) whether something is a function or an independent variable. I suspect programmers get it much more quickly.