Bézier curve - Wikipedia
https://en.wikipedia.org/wiki/B%C3%A9zier_curve
OverviewGeneral definitionInventionSpecific casesConstructing Bézier curvesDegree elevationRational Bézier curvesApplicationsBézier curves can be defined for any degree n. A recursive definition for the Bézier curve of degree n expresses it as a point-to-point linear combination (linear interpolation) of a pair of corresponding points in two Bézier curves of degree n − 1. Let denote the Bézier curve determined by any selection of points P0, P1, ..., Pk. …
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