John D. Cook 8/4/2026

Metallic alchemy

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This article discusses metallic ratios, a family of numbers defined by continued fractions or quadratic equations, and investigates when one metallic ratio can be expressed in terms of another. It uses algebraic number theory, specifically field extensions and square factors, to determine equivalence. Examples include deriving the golden ratio from the lead ratio and creating bronze from copper and tin ratios.

Metallic alchemy

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