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