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  2. Unstructured grid - Wikipedia

    en.wikipedia.org/wiki/Unstructured_grid

    Example of unstructured grid for a finite element analysis mesh. An unstructured grid or irregular grid is a tessellation of a part of the Euclidean plane or Euclidean space by simple shapes, such as triangles or tetrahedra, in an irregular pattern. Grids of this type may be used in finite element analysis when the input to be analyzed has an ...

  3. Regular grid - Wikipedia

    en.wikipedia.org/wiki/Regular_grid

    Example of a regular grid. A regular grid is a tessellation of n-dimensional Euclidean space by congruent parallelotopes (e.g. bricks). [1] Its opposite is irregular grid.. Grids of this type appear on graph paper and may be used in finite element analysis, finite volume methods, finite difference methods, and in general for discretization of parameter spaces.

  4. Grid classification - Wikipedia

    en.wikipedia.org/wiki/Grid_classification

    This uses various combinations of cell shapes. Hybrid grid can also be used. Hybrid grids are those in which mixture of triangular and quadrilateral elements are used to construct grids. In three dimension combination of tetrahedral and hexahedral elements results in hybrid grid. Example of hybrid grid is shown in Figure 5.

  5. Packing problems - Wikipedia

    en.wikipedia.org/wiki/Packing_problems

    Packing of irregular objects is a problem not lending itself well to closed form solutions; however, the applicability to practical environmental science is quite important. For example, irregularly shaped soil particles pack differently as the sizes and shapes vary, leading to important outcomes for plant species to adapt root formations and ...

  6. Mathematics of paper folding - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_paper_folding

    The fold-and-cut problem asks what shapes can be obtained by folding a piece of paper flat, and making a single straight complete cut. The solution, known as the fold-and-cut theorem, states that any shape with straight sides can be obtained. A practical problem is how to fold a map so that it may be manipulated with minimal effort or movements.

  7. Regular Division of the Plane - Wikipedia

    en.wikipedia.org/wiki/Regular_Division_of_the_Plane

    Regular Division of the Plane III, woodcut, 1957 - 1958.. Regular Division of the Plane is a series of drawings by the Dutch artist M. C. Escher which began in 1936. These images are based on the principle of tessellation, irregular shapes or combinations of shapes that interlock completely to cover a surface or plane.

  8. Voronoi diagram - Wikipedia

    en.wikipedia.org/wiki/Voronoi_diagram

    For example, one might want to find the nearest hospital or the most similar object in a database. A large application is vector quantization , commonly used in data compression . In geometry , Voronoi diagrams can be used to find the largest empty circle amid a set of points, and in an enclosing polygon; e.g. to build a new supermarket as far ...

  9. Discrete global grid - Wikipedia

    en.wikipedia.org/wiki/Discrete_global_grid

    Tile regularity and shape: there are regular, semi-regular or irregular grid. As in generic tilings by regular polygons , is possible to tiling with regular face (like wall tiles can be rectangular, triangular, hexagonal, etc.), or with same face type but changing its size or angles, resulting in semi-regular shapes.

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