What is the name of this ' () ' in C++ ?

Question

If we use this brackets in algebraic expression or arithmetic sequence it is just called brackets but what we call this when use this brackets in function (where we give parameters and arguments) ?

Answer 1

that's "calling the function"

and whenever you see a function name without () a call, then it's a reference to that function.

Answer 2

Ohh ok bro ☺️