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Thread: Who first gave algebraic proofs of a circle?

  1. December 3rd 2008, 10:31 AM #1
    EyesForEars
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    Who first gave algebraic proofs of a circle?

    Just out of curiosity does anyone know who first described a circle in algebriac terms? ie: (x-h)^2+(y-k)^2=r^2I'm being asked to give a mathematical decription of a circle.
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  2. December 3rd 2008, 05:56 PM #2
    ThePerfectHacker
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    Quote Originally Posted by EyesForEars View Post
    Just out of curiosity does anyone know who first described a circle in algebriac terms? ie: (x-h)^2+(y-k)^2=r^2I'm being asked to give a mathematical decription of a circle.
    Probably either Rene Descrates or, my hero, Pierre Fermat.
    I say this because they were the first to invent the idea of analytic geometry.
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