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Created page with "== Introduction == The Cayley–Hamilton theorem is a fundamental theorem in linear algebra, named after the mathematicians Arthur Cayley and William Rowan Hamilton. The theorem states that every square matrix over a commutative ring (such as the real or complex numbers) satisfies its own characteristic equation. thumb|center|A square matrix with real or complex numbers|class=only_on_mobile Image:Detail-72204.jpg|thumb|center|A..."