
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 - 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 - 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 -- 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 & 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 - 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.
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.
Perimeter of an ellipse - Wikipedia
An ellipse is defined by two axes: the major axis (the longest diameter) of length and the minor axis (the shortest diameter) of length , where the quantities and are the lengths of the semi …