Why is Pi so occurring in physics

[jamalkoiyess]

Pi is everywhere in physics. Why is that.

 

[FactChecker]

Pi occurs naturally in the mathematics of cyclic or oscillatory behavior.

 

[sophiecentaur]

Pi is everywhere in physics. Why is that.

π is only one of several fundamental constants that turn up in Science. e is a constant that is involved in the description of non-cyclic changes - growth and decay. But those two constants have an odd relationship with each other and other mathematical constants
It also happens that
e^πi = -1
That's something 'inside Maths' which everyone finds exciting and, to my mind, it's at least as interesting as E=mc². When we were told that for the first time, the whole class were shuffling in their seats with amazement.