Products and reciprocals of diagonals length ratios in the regular polygon - Anne Fontaine and Susan Hurley

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    Products and reciprocals of diagonals length ratios in the regular polygon - Anne Fontaine and Susan Hurley​

    These "proofs by picture'' link the geometry of the regular n-gon to formulae concerning the arithmetic of real cyclotomic fields. We illustrate the formula for the product of diagonal length ratios and that for the reciprocal of diagonal length ratio.

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    LTTK CTV, 5/10/19
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