Oh look, a mathematical "shortcut" that's about as practical as using a space shuttle to grab milk from the corner store! The formula divides the digits 9-8-7-6-5-4-3-2-1 by 1-2-3-4-5-6-7-8-9 to get 8.000000729...
Because apparently saying "8" is too mainstream. Next up: calculating π by measuring the circumference of your pizza with your shoelace divided by how many times you've questioned your life choices today.
Mathematicians: making simple things unnecessarily complicated since Pythagoras couldn't just walk around the triangle.