GTG3000

Helldivers 2. You play as brainwashed shock troops for a tyrannical Super Earth.

Math notation is just terrible in general because a lot of it is shorthand made up by someone who likes single-letter variables. A symbol you can’t type, something above, something below.

A for loop is clear and descriptive.
Or if you’re feeling fancy, you could go functional with reduce(add, range(0, 5), 0).