‘Things are naturally contrary, that is, cannot exist in the same object, in so far as one is capable of destroying the other.’ –Spinoza
Michael Hartl says it’s time to lose pi in favor of a new symbol: tau. We asked him to explain why pi has to go.
Hartl is the author of The Tau Manifesto, which argues that, quite simply, pi is wrong. He’s also a physicist who has previously both studied and taught at Harvard and Caltech.
So what is tau? Well, simply enough, it’s 2*pi, or 2π.
