If pi is double tau, is it tau squared or 2 tau?
I presume that you refer to Dirac Time invariance.
T(0), T(1), T(2), T(pi) and T(h) are time invariants used to define the motion of spatial dimensions against the time dimension. T [tao] is the invariant summation and has supersymmetry as part of the calculation.
This is a mathematically challenging concept but it is well worth the effort to explore it.
Rocmike you do know how to google and copy and paste but you do not have the intelligence to understand or apply it.
I wasn't referring to Dirac at all. I was merely referring to the appearance of the letters Tau and Pi as they're written in Greek. Pi resembles Tau twice but connected in the middle.