While playing around with various formulas for the Royal Cubit ,I stumbled across this formula:

Which looks pretty innocuous until you see that for practical purposes, as on a ruler, it’s effectively equal to 1. The actual value is about 1.00000970264.

This allows us to rewrite pi, phi and e in terms of the other two, as follows:

Which allows us to replace variables in approximations for the Royal Cubit, sometimes with results that are even closer to pi/6.

I’ll update the other posts dealing with the Royal Cubit with new approximations.