Geometric Definition and Locus of a Parabola
2017-11-02 03:02
This applet demonstrates the geometric definition of a parabola, which is the locus of points equidistant from a fixed focus and a directrix. By constructing a moving point P, it dynamically displays the distance from P to the focus and the perpendicular distance to the directrix. Dragging P shows these distances remain equal, verifying the parabola's core property.
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