
Ellipse - Wikipedia
An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipses: examples with increasing eccentricity In mathematics, an ellipse is a plane curve surrounding two focal …
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 3, 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 …
The Ellipse | Algebra and Trigonometry - Lumen Learning
This section focuses on the four variations of the standard form of the equation for the ellipse. An ellipse is the set of all points (x, y) in a plane such that the sum of their distances from two …
ELLIPSE Definition & Meaning - Merriam-Webster
A closed curve consisting of points whose distances from each of two fixed points (foci) all add up to the same value is an ellipse. The midpoint between the foci is the center.
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 ...
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 …
Ellipse - math word definition- Math Open Reference
A circle is actually a special case of an ellipse. In an ellipse, if you make the major and minor axis the same length, the result is a circle, with both foci at the center.