This equation represents the product rule, a way to find the derivative of a function that is the multiplication of two other functions, \(\htmlClass{sdt-0000000008}{u}\) and \(\htmlClass{sdt-0000000019}{v}\).
This is a generic function, that could be of any variable.
This is the symbol for the derivative of a function. If \(f(x)\) is a function, then \(f'(x)\) is the derivative of that function.