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A minimal-degree polynomial for determining the volume of an octahedron from its metric.

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Russ. Math. Surv., 50 (5): 1085-1087 (1995)

Аннотация

This note discusses the derivation of a polynomial for the volume of a octahedron, when the edge lengths of it are given. It is known that the volume of a flexible polyhedron with those edge lengths doesn't depend on the realization. For octahedra there are 8 realizations, and therefore the polynomial that describes the volume must have degree 8. The derivation of this polynomial is done by using a computer algebra system.

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