Osculating Circle

  1. Construct the osculating circle of an ellipse (hyperbola) following these steps:
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  2. Suppose that the ellipse were constructed based on parametric equations. These are the steps to construct its osculating circle:
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  3. Suppose that the hyperbola were constructed based on parametric equations. These are the steps to construct its osculating circle:
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  4. Construct the osculating circle of the parabola.
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  5. Construct the animation showing the osculating circle of the astroid. Draw the line segments joining a variable point of the astroid to its center of curvature.
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  6. Do the same for the deltoid, the cardioid and the nephroid.
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  7. Construct the osculating circle of a trochoid. Show that the animation can be reduced to the case of the cycloid.
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