Vella Mar 26, 2016 I may join if: 1. I won't be included in leaderboard 2. I won't accept any rewards,like banners, due to broken keyboard
I may join if: 1. I won't be included in leaderboard 2. I won't accept any rewards,like banners, due to broken keyboard
note: dy+dx != ds, dy^2 +dx^2 = ds^2
For noncalculus form, see
https://www.khanacademy.org/math/recreational-math/vi-hart/pi-tau/v/rhapsody-on-the-proof-of-pi-4