Did you hear about the pi vs tau debate yet?
It’s not a big deal, my limited excursions of the world of mathematics gives me a slight preference for tau over pi. It’s like chosing between overall-ugliness (it’s ugly with two definitions for the same thing) or domain-ugliness (“wrong” constants gives uglier formulas). I came up with an interactive madtealab example to show the profoundness of tau in the domain of derivation:
Note that triple derivation is also implemented as a graphing mode, so this is how I’d do it hacker-style.
(by the way, tau is now defined in madtealab!)