Tau vs PI
First, read this:
My opinion on this is that it's a simple guage transformation that is useful in spherical trig or calculating compound angles but that's it.
Math is a tool. An elaborate extension to describe whatever we choose to measure.
PI is a reasonably accurate description of the ratio of diameter to circumference.
Tau is a reasonable accurate description of the ratio of radius to circumference.
Is there so much of a difference?
CT Co-ordinator, Paintball Marshals