About 7,520 results
Open links in new tab
  1. Ellipsoid - Wikipedia

    An ellipsoid is a surface that can be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a …

  2. Ellipsoid - Math.net

    An ellipsoid has three axes of rotational symmetry. If an ellipsoid is rotated 180° (half a turn) about its axes, it will look the same as the original shape. The three axes are perpendicular to each other and …

  3. Ellipsoid - from Wolfram MathWorld

    Dec 22, 2025 · The general ellipsoid, also called a triaxial ellipsoid, is a quadratic surface which is given in Cartesian coordinates by (x^2)/ (a^2)+ (y^2)/ (b^2)+ (z^2)/ (c^2)=1, (1) where the semi-axes are of …

  4. Ellipsoid | Surfaces, Axes, Foci | Britannica

    Ellipsoid, closed surface of which all plane cross sections are either ellipses or circles. An ellipsoid is symmetrical about three mutually perpendicular axes that intersect at the centre.

  5. The Ellipsoidal Shape: Definition, Uses, and Examples

    Aug 4, 2025 · Unlike a perfect sphere, which has a single radius, an ellipsoid is characterized by three distinct, mutually perpendicular semi-axes that determine its length, width, and depth.

  6. Geometry - Ellipsoids - TechnologyUK

    An ellipsoid is a three-dimensional shape for which all plane cross-sections are either ellipses or circles. The ellipsoid has three axes which intersect at the centre of the ellipsoid.

  7. Ellipsoid: Definition, Equation & Volume Explained Simply - Vedantu

    An ellipsoid is a three-dimensional surface that is a 3D analogue of an ellipse. It can be visualized as a sphere that has been stretched or compressed along its three perpendicular axes.

  8. The ellipsoid - Math Insight

    Just as an ellipse is a generalization of a circle, an ellipsoid is a generalization of a sphere. In fact, our planet Earth is not a true sphere; it's an ellipsoid, because it's a little wider than it is tall.

  9. Ellipsoid: A Simple Explanation - Andrea Minini

    An ellipsoid is a three-dimensional geometric shape that can be visualized as a stretched or flattened version of a sphere. In other words, it's a smooth, closed surface similar to a sphere but with different …

  10. IGQS: Ellipsoid

    In fact, our planet Earth is not a true sphere; it’s an ellipsoid, because it’s a little wider than it is tall. As you can verify below, all of the cross sections of an ellipsoid are ellipses.