TITLE:
Simple Formulas of π in Terms of Φ
AUTHORS:
Angelo Pignatelli
KEYWORDS:
π, Φ, Golden Ratio, Squaring the Circle
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.12 No.5,
May
30,
2024
ABSTRACT: The paper presents a novel exploration of π through a re-calculation of formulas using Archimedes’ algorithm, resulting in the identification of a general family equation and three new formulas involving the golden ratio Φ, in the form of infinite nested square roots. Some related geometrical properties are shown, enhancing the link between the circle and the golden ratio. Applying the same criteria, a fourth formula is given, that brings to the known Dixon’s squaring the circle approximation, thus an easier approach to this problem is suggested, by a rectangle with both sides proportional to the golden ratio Φ.