Pedal Curve
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pedal curve [′ped·əl ‚kərv]

(mathematics)

The pedal curve of a given curveCwith respect to a fixed pointPis the locus of the foot of the perpendicular fromPto a variable tangent toC. Also known as first pedal curve; first positive pedal curve; positive pedal curve.

Any curve that can be derived from a given curveCby repeated application of the procedure specified in the first definition.

Pedal Curve

(or pedal). The locus P of the feet of the perpendiculars dropped from a point O to the tangents of a given curve A is called the pedal curve of A with respect to the point 0. An example of a pedal curve is given in Figure 1. The curve A is said to be the first negative pedal curve of P with respect to the point 0.

Figure 1

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Pedal Curve (redirected from Contrapedal curve)

Pedal Curve
(redirected from Contrapedal curve)