Ptolemy's theorem from proj.math documentary
7:04
Added: 1 year ago
From: twistedlot
Views: 1,353
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  • where can i get this full documentary

    badboysandy 6 months ago

  • By the way, Ptolemy's theorem appears in his book "Almagest" a.k.a. "Syntaxis Mathematica", Book 1, Chapter 10.

    KevinByrne2 6 months ago

  • Thanks for posting this episode of "Mathematics!"

    I saw the series years ago, and I was particularly impressed by these proofs of Ptolemy's theorem and the angle addition formulas.

    KevinByrne2 7 months ago

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