Negative Pedal Curve
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High Quality Content by WIKIPEDIA articles! In the plane, for every point X other than P there is a unique line through X perpendicular to XP. For a given curve in the plane and a given fixed point P, called the pedal point, the negative pedal curve is the envelope of the lines XP for which X lies on the given curve. The negative pedal curve of a pedal curve with the same pedal point is the original curve. In the differential geometry of curves, a pedal curve is a curve derived by construction from a given curve (as is, for example, the involute). Let C be a given curve and P a fixed point (ca...
High Quality Content by WIKIPEDIA articles! In the plane, for every point X other than P there is a unique line through X perpendicular to XP. For a given curve in the plane and a given fixed point P, called the pedal point, the negative pedal curve is the envelope of the lines XP for which X lies on the given curve. The negative pedal curve of a pedal curve with the same pedal point is the original curve. In the differential geometry of curves, a pedal curve is a curve derived by construction from a given curve (as is, for example, the involute). Let C be a given curve and P a fixed point (called the pedal point).
