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Evolutes of Some Basic Curves

The line of best fit to a curve at a point is the tangent at the point. The circle of best fit at a point is called the osculating circle. Its center traces out a new curve called the evolute.

The original curve is shown in blue, the evolute in green, and the osculating circle in orange.

Contributed by: Edda Eich-Soellner

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Evolute (Wolfram MathWorld)

"Evolutes of Some Basic Curves" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/EvolutesOfSomeBasicCurves/

Contributed by: Edda Eich-Soellner

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