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  2. 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.

  3. List of mathematical shapes - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_shapes

    For example, in a polyhedron (3-dimensional polytope), a face is a facet, an edge is a ridge, and a vertex is a peak. Vertex figure: not itself an element of a polytope, but a diagram showing how the elements meet.

  4. Lists of shapes - Wikipedia

    en.wikipedia.org/wiki/Lists_of_shapes

    Lists of shapes cover different types of geometric shape and related topics. They include mathematics topics and other lists of shapes, such as shapes used by drawing or teaching tools. They include mathematics topics and other lists of shapes, such as shapes used by drawing or teaching tools.

  5. List of shapes with known packing constant - Wikipedia

    en.wikipedia.org/wiki/List_of_shapes_with_known...

    All shapes contained in a rhombic dodecahedron whose inscribed sphere is contained in the shape: 3: Fraction of the volume of the rhombic dodecahedron filled by the shape: Corollary of Kepler conjecture. Examples pictured: rhombicuboctahedron and rhombic enneacontahedron. Hypersphere: 8

  6. Squircle - Wikipedia

    en.wikipedia.org/wiki/Squircle

    Squircle centred on the origin (a = b = 0) with minor radius r = 1: x 4 + y 4 = 1A squircle is a shape intermediate between a square and a circle.There are at least two definitions of "squircle" in use, one based on the superellipse, the other arising from work in optics.

  7. Superellipsoid - Wikipedia

    en.wikipedia.org/wiki/Superellipsoid

    Superellipsoid collection with exponent parameters, created using POV-Ray.Here, e = 2/r, and n = 2/t (equivalently, r = 2/e and t = 2/n). [1]In mathematics, a superellipsoid (or super-ellipsoid) is a solid whose horizontal sections are superellipses (Lamé curves) with the same squareness parameter , and whose vertical sections through the center are superellipses with the squareness parameter .

  8. Superegg - Wikipedia

    en.wikipedia.org/wiki/Superegg

    In geometry, a superegg is a solid of revolution obtained by rotating an elongated superellipse with exponent greater than 2 around its longest axis. It is a special case of superellipsoid . Unlike an elongated ellipsoid , an elongated superegg can stand upright on a flat surface, or on top of another superegg. [ 1 ]

  9. Perimeter of an ellipse - Wikipedia

    en.wikipedia.org/wiki/Perimeter_of_an_ellipse

    An ellipse has two axes and two foci. Unlike most other elementary shapes, such as the circle and square, there is no algebraic equation to determine the perimeter of an ellipse. Throughout history, a large number of equations for approximations and estimates have been made for the perimeter of an ellipse.

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