>>11558687The layman rule is "constant first, then variable", as we always say 2x or 5y. Considering the ratio pi is represented with a non numerical symbol, but is itself constant, it makes sense to go in the middle.
Also in English, the quantity is an adjective and the ratio pi is a noun (how many pi? 2 pi). 2pi, red car, cocksucking OP.
Also, even more so than rules and logic, this
>>11558701 
