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Thread: Ellipse

  1. #1
    Member roshanhero's Avatar
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    Ellipse

    What is meant by director circle and what is the general diagram of it?
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  2. #2
    MHF Contributor
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    Find a pair of perpendicular tangents.
    Find the point of intersection of the tangents.
    The point of intersection will be on the "Director Circle"

    If you ellispse is x^2 / a^2 + y^2 / b^2 = 1, then your director circle is x^2 + y^2 = a^2 + b^2
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