
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 …
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 …
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
Dec 22, 2025 · 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 …
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 …
12.1: The Ellipse - Mathematics LibreTexts
Apr 27, 2025 · The key features of the ellipse are its center, vertices, co-vertices, foci, and lengths and positions of the major and minor axes. Just as with other equations, we can identify all of …
Ellipse | Brilliant Math & Science Wiki
An ellipse is a conic section, that resembles an oval, but is formally characterized by the following property: there exist two points ...
A Quick Overview of Ellipses in Geometry - Interactive Mathematics
An ellipse is a closed curve in a plane, created by the intersection of a cone and a plane that is not parallel to the base of the cone. The ellipse looks similar to a circle, but it is elongated …
Ellipse - Math.net
Mathematically, an ellipse is a 2D closed curve where the sum of the distances between any point on it and two fixed points, called the focus points (foci for plural) is the same.