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  2. n-ellipse - Wikipedia

    en.wikipedia.org/wiki/N-ellipse

    The 1-ellipse is the circle, and the 2-ellipse is the classic ellipse. Both are algebraic curves of degree 2. For any number n of foci, the n -ellipse is a closed , convex curve .

  3. Ellipse - Wikipedia

    en.wikipedia.org/wiki/Ellipse

    An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipse: notations Ellipses: examples with increasing eccentricity. 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.

  4. Superellipse - Wikipedia

    en.wikipedia.org/wiki/Superellipse

    Examples of superellipses for =, =. A superellipse, also known as a Lamé curve after Gabriel Lamé, is a closed curve resembling the ellipse, retaining the geometric features of semi-major axis and semi-minor axis, and symmetry about them, but defined by an equation that allows for various shapes between a rectangle and an ellipse.

  5. Perimeter of an ellipse - Wikipedia

    en.wikipedia.org/wiki/Perimeter_of_an_ellipse

    An ellipse is defined by two axes: the major axis ... The integral used to find the area does not have a closed-form solution in terms of elementary functions ...

  6. Geodesics on an ellipsoid - Wikipedia

    en.wikipedia.org/wiki/Geodesics_on_an_ellipsoid

    On a closed surface such as an ellipsoid, m 12 oscillates about zero. The point at which m 12 becomes zero is the point conjugate to the starting point. In order for a geodesic between A and B , of length s 12 , to be a shortest path it must satisfy the Jacobi condition ( Jacobi 1837 ) ( Jacobi 1866 , §6) ( Forsyth 1927 , §§26–27) ( Bliss ...

  7. Eccentricity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Eccentricity_(mathematics)

    For example, on a triaxial ellipsoid, the meridional eccentricity is that of the ellipse formed by a section containing both the longest and the shortest axes (one of which will be the polar axis), and the equatorial eccentricity is the eccentricity of the ellipse formed by a section through the centre, perpendicular to the polar axis (i.e. in ...

  8. Harris to make her closing argument at the Ellipse 1 week ...

    www.aol.com/harris-requests-permit-political...

    Vice President Harris will give an address at the Ellipse in Washington, D.C., on Tuesday, one week before Election Day. Harris will make her closing argument during the remarks, during which she ...

  9. Line segment - Wikipedia

    en.wikipedia.org/wiki/Line_segment

    A standard definition of an ellipse is the set of points for which the sum of a point's distances to two foci is a constant; if this constant equals the distance between the foci, the line segment is the result. A complete orbit of this ellipse traverses the line segment twice. As a degenerate orbit, this is a radial elliptic trajectory.