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  2. Cone - Wikipedia

    en.wikipedia.org/wiki/Cone

    In the case of lines, the cone extends infinitely far in both directions from the apex, in which case it is sometimes called a double cone. Either half of a double cone on one side of the apex is called a nappe. The axis of a cone is the straight line passing through the apex about which the base (and the whole cone) has a circular symmetry.

  3. Conical surface - Wikipedia

    en.wikipedia.org/wiki/Conical_surface

    More generally, when the directrix is an ellipse, or any conic section, and the apex is an arbitrary point not on the plane of , one obtains an elliptic cone [4] (also called a conical quadric or quadratic cone), [5] which is a special case of a quadric surface. [4] [5]

  4. Convex cone - Wikipedia

    en.wikipedia.org/wiki/Convex_cone

    A cone is a convex cone if + belongs to , for any positive scalars , , and any , in . [5] [6] A cone is convex if and only if +.This concept is meaningful for any vector space that allows the concept of "positive" scalar, such as spaces over the rational, algebraic, or (more commonly) the real numbers.

  5. Positive cone - Wikipedia

    en.wikipedia.org/wiki/Positive_cone

    Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Positive cone may refer to: Positive cone of an ordered field ...

  6. Power cone - Wikipedia

    en.wikipedia.org/wiki/Power_cone

    In linear algebra, a power cone is a kind of a convex cone that is particularly important in modeling convex optimization problems. [1] [2] It is a generalization of the quadratic cone: the quadratic cone is defined using a quadratic equation (with the power 2), whereas a power cone can be defined using any power, not necessarily 2.

  7. File:Steradian cone and cap.svg - Wikipedia

    en.wikipedia.org/wiki/File:Steradian_cone_and...

    Diagram showing a section through the centre of a cone (1) subtending a solid angle of 1 steradian in a sphere of radius r, along with the spherical "cap" (2). The fact that the external surface of the cap has an area of r 2 is shown. Note that this applies only if the solid angle of the cone is exactly 1 steradian. Date: 30 September 2007: Source

  8. Ben & Jerry’s announces first Free Cone Day in 4 years. Here ...

    www.aol.com/ben-jerry-announces-first-free...

    Ben & Jerry’s announced its first Free Cone Day after a four-year hiatus. Here's where and how you can grab a scoop on April 3, 2023. Ben & Jerry’s announces first Free Cone Day in 4 years.

  9. Spherical cone - Wikipedia

    en.wikipedia.org/wiki/Spherical_cone

    Print/export Download as PDF; Printable version; In other projects ... A spherical cone may mean: a hypercone in 4D; a spherical sector in 3D; See also . Spherical ...