Ellipse Evolute
The Evolute of an Ellipse is given by the parametric equations
 |  |  | (1) |
 | |  | (2) |
which can be combined and written
 | |
 | (3) |
References
Gray, A. Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, p. 77, 1993.
- Order (Modulo)
- Order (Ordinary Differential Equation)
- Order (Permutation)
- Order (Polynomial)
- Order Statistic
- Order (Vertex)
- Ordinal Number
- Ordinary Differential Equation
- Ordinary Differential Equation--First-Order
- Ordinary Differential Equation--First-Order Exact
- Ordinary Differential Equation Second-Order
- Ordinary Differential Equation--System with Constant Coefficients
- Ordinary Double Point
- Ordinary Line
- Ordinary Point
- Ordinate
- Ore Number
- Ore's Conjecture
- Ore's Theorem
- Orientable Surface
- Orientation (Plane Curve)
- Orientation-Preserving
- Orientation-Reversing
- Orientation (Vectors)
- Origami