
Ellipse - Wikipedia
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of both distances to the two focal points is a constant. It generalizes a circle, which is …
Ellipse | Definition, Properties & Equations | Britannica
Dec 24, 2025 · Ellipse, a closed curve, the intersection of a right circular cone (see cone) and a plane that is not parallel to the base, the axis, or an element of the cone.
Ellipse - Equation, Formula, Properties, Graphing - Cuemath
An ellipse is the locus of a point whose sum of distances from two fixed points is a constant. Its equation is of the form x^2/a^2 + y^2/b^2 = 1, where 'a' is the length of the semi-major axis and 'b' is the length …
Ellipse - Math is Fun
An ellipse usually looks like a squashed circle ... F is a focus, G is a focus, and together they are called foci. (pronounced fo-sigh)
Ellipse -- from Wolfram MathWorld
Jan 29, 2026 · The ellipse is a conic section and a Lissajous curve. An ellipse can be specified in the Wolfram Language using Circle [x, y, a, b]. If the endpoints of a segment are moved along two …
Amazon.com: Ellipse
Amazon.com: Ellipse Recycled Claim Standard 100 (RCS100) certified products contain recycled content (>95%) that has been independently verified at each stage of the supply chain, from the …
Ellipse – Definition, Parts, Equation, and Diagrams
Aug 3, 2023 · An ellipse is a closed curved plane formed by a point moving so that the sum of its distance from the two fixed or focal points is always constant. It is formed around two focal points, …
Ellipses - Definition, Equations, Types, Properties and Examples | CK ...
Feb 1, 2026 · Definition of an Ellipse An ellipse is the set of all points in a plane such that the sum of their distances from two fixed points, called foci, is constant.
What Is an Ellipse? Definition, Formula, and Geometric Meaning
May 16, 2025 · An ellipse is the set of all points in a plane where the sum of the distances to two fixed points (foci) is constant.
What are ellipses? What are their vocabulary words?
An ellipse differs from an oval in that an oval, being egg-shaped, is "flatter" on one end than on the other; an ellipse is equally rounded on each of its ends.