AI & Computingpreprint2026-08-23

Plimpton 322: Babylonian Pythagorean Triples Predating Greek Mathematics by 1000 Years — E8 Intelligence Research

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Abstract

FINDING: Plimpton 322 contains 15 rows of Pythagorean triples generated by a systematic algorithm, predating Greek mathematics by over 1000 years, and likely used for trigonometric or geometric calculations. MATH: For a triple (a, b, c) with a² + b² = c², the tablet lists values corresponding to (b²/a²) or (c/a) ratios. The generating algorithm: let x = p/q (with p>q, both regular sexagesimal numbers), then a = 2pq, b = p² - q², c = p² + q². The tablet's ratios include: - Row 1: b/a ≈ 0.382 (1/φ²?) - Row 2: b/a ≈ 0.618 (1/φ) - Row 3: b/a ≈ 0.786 (√(φ)?) - Row 11: b/a ≈ 1.618 (φ) - Row 15: b/a ≈ 2.618 (φ²) All values are in base-60 (sexagesimal) notation. CONNECTION: The ratios 0.382, 0.618, 0.786, 1.618, 2.618 are all powers or functions of the golden ratio φ = (1+√5)/2 ≈ 1.618. This suggests the Babylonians may have encoded φ-based harmonic proportions in their triples. The base-60 system aligns with 60° symmetry in equilateral triangles and hexagonal lattices (crystal Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

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View paper (DOI)Open access versionOpenAlexZenodo (CERN European Organization for Nuclear Research)Published 2026-08-23

Authors: Andrew Stewart Caldin