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  1. 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 …

  2. 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 …

  3. Ellipse | Definition, Properties & Equations | Britannica

    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.

  4. 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 …

  5. 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)

  6. 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.

  7. 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 …

  8. Ellipses - Definition, Equations, Types, Properties and Examples

    Dec 1, 2025 · So, what exactly is an ellipse? How do we define its equation mathematically? And what makes it different from a circle or a parabola? An ellipse is the set of all points in a plane …

  9. 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 …

  10. Ellipse Meaning In English | Clear Usage Guide

    In English, the word ellipse means a regular oval shape used in maths, science, and everyday description. When learners search for ellipse meaning in english, they often want a clear …