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Hipparchus

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... both Hipparchus as well as Menelaus Wrote Almagest, Geography, Quadripartitum and Tetrabiblos Major Contribution(s): Ptolemy's table of chords, ... – PowerPoint PPT presentation

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Title: Hipparchus


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Hipparchus Father of Trigonometry
  • developed the ideas of trigonometry from its
    early form explored by the Hellenistic
    mathematicians.

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Main Concepts
  • Supplementary angle theorem
  • Half angle formulas
  • linear interpolation (used to create chord
    function)

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Menelaus of Alexandria
  • Astronomer and Mathematician
  • Followed the work of Hipparchus
  • Only surviving work is titled Sphaerica which
    highlights mathematical concepts such as the
    spherical triangle in relation to astronomy
  • Major Contribution(s) Menelaus Theorem

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Main Concept
  • Menelaus Theorem

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Claudius Ptolemy
  • mathematician, astronomer, geographer,
    astrologer, and poet
  • Followed the work of both Hipparchus as well as
    Menelaus
  • Wrote Almagest, Geography, Quadripartitum and
    Tetrabiblos
  • Major Contribution(s) Ptolemy's table of chords,
    Ptolemys theorem

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Main Concepts
  • Ptolemy's table of chords
  • Ptolemys Theorem

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