The discussion of Tau has arrived numerous times on here!
There is a package for it GitHub - JuliaMath/Tau.jl: A Julia module providing the definition of the circle constant Tau (2π)
The discussion of Tau has arrived numerous times on here!
There is a package for it GitHub - JuliaMath/Tau.jl: A Julia module providing the definition of the circle constant Tau (2π)