[protomikron]

There's some more or less serious discussion, that instead of using π = 3.14... (Pi) in formulas, we should adopt τ = 6.28... (Tau). Proponents claim, that it would simplify many formulas that include the term "2π".

For example the circumference on the unit circle is 2π and would become just τ if we adopted it as a constant.

[6gvONxR4sf7o]

To add to this, it's specifically because 2*pi (and forms of it like 4*pi^2) show up so frequently.

[erikschoster]

Ah, OK I was on the completely wrong track. Thanks for explaining!