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  2. Hill sphere - Wikipedia

    en.wikipedia.org/wiki/Hill_sphere

    [4] [verification needed] A more complex example is the one at right, the Earth's Hill sphere, which extends between the Lagrange points L 1 and L 2, [clarification needed] which lie along the line of centers of the Earth and the more massive Sun. [not verified in body] The gravitational influence of the less massive body is least in that ...

  3. Packing problems - Wikipedia

    en.wikipedia.org/wiki/Packing_problems

    In a bin packing problem, people are given: A container, usually a two- or three-dimensional convex region, possibly of infinite size. Multiple containers may be given depending on the problem. A set of objects, some or all of which must be packed into one or more containers. The set may contain different objects with their sizes specified, or ...

  4. Model category - Wikipedia

    en.wikipedia.org/wiki/Model_category

    For example, all objects are cofibrant in the standard model category of simplicial sets and all objects are fibrant for the standard model category structure given above for topological spaces. Left homotopy is defined with respect to cylinder objects and right homotopy is defined with respect to path space objects. These notions coincide when ...

  5. Space (mathematics) - Wikipedia

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

    Vectors in a Euclidean space form a linear space, but each vector has also a length, in other words, norm, ‖ ‖. A real or complex linear space endowed with a norm is a normed space. Every normed space is both a linear topological space and a metric space. A Banach space is a complete normed space. Many spaces of sequences or functions are ...

  6. Descriptive geometry - Wikipedia

    en.wikipedia.org/wiki/Descriptive_geometry

    Given the X, Y and Z coordinates of P, R, S and U, projections 1 and 2 are drawn to scale on the X-Y and X-Z planes, respectively. To get a true view (length in the projection is equal to length in 3D space) of one of the lines: SU in this example, projection 3 is drawn with hinge line H 2,3 parallel to S 2 U 2.

  7. Spacetime diagram - Wikipedia

    en.wikipedia.org/wiki/Spacetime_diagram

    A Minkowski diagram is a two-dimensional graphical depiction of a portion of Minkowski space, usually where space has been curtailed to a single dimension. The units of measurement in these diagrams are taken such that the light cone at an event consists of the lines of slope plus or minus one through that event. [ 3 ]

  8. Binary space partitioning - Wikipedia

    en.wikipedia.org/wiki/Binary_space_partitioning

    In computer science, binary space partitioning (BSP) is a method for space partitioning which recursively subdivides a Euclidean space into two convex sets by using hyperplanes as partitions. This process of subdividing gives rise to a representation of objects within the space in the form of a tree data structure known as a BSP tree .

  9. Hilbert curve - Wikipedia

    en.wikipedia.org/wiki/Hilbert_curve

    The linear distance of any point along the curve can be converted to coordinates in n dimensions for a given n, and vice versa, using any of several standard mathematical techniques such as Skilling's method. [13] [14] It is possible to implement Hilbert curves efficiently even when the data space does not form a square. [15]