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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 the two distances to the focal points is a constant. It generalizes a circle, …

  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 - Math is Fun

    We also get an ellipse when we slice through a cone (but not too steep a slice, or we get a parabola or hyperbola). In fact the ellipse is a conic section (a section of a cone) with an …

  4. 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.

  5. 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 …

  6. The Ellipse | Precalculus - 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) (x, y) in a plane such that the sum of their distances from …

  7. 8.1 The Ellipse - College Algebra 2e | OpenStax

    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) (x, y) in a plane such that the sum of their distances from …

  8. Ellipse -- from Wolfram MathWorld

    Jul 27, 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 …

  9. Ellipse | Definition, Properties & Equations | Britannica

    Jul 3, 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.

  10. 5. The Ellipse - Interactive Mathematics

    In this section, we learn the properties of an ellipse, the equation of an ellipse and some applications.