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Descartes' theorem (disambiguation)

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In geometry, Descartes' theorem states that, for every four mutually tangent circles, the radii of the circles satisfy a certain quadratic equation.

Descartes' theorem may also refer to:

Descartes' theorem on total angular defect, on angles in polyhedra
Descartes' rule of signs, on roots of polynomials

See also

List of things named after René Descartes

Topics referred to by the same term

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