• In geometry, a Euclidean plane isometry is an isometry of the Euclidean plane, or more informally, a way of transforming the plane that preserves geometrical...
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    In mathematics, a Euclidean group is the group of (Euclidean) isometries of a Euclidean space E n {\displaystyle \mathbb {E} ^{n}} ; that is, the transformations...
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  • Thumbnail for Isometry
    two-dimensional or three-dimensional Euclidean space, two geometric figures are congruent if they are related by an isometry; the isometry that relates them is either...
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  • Rotations and reflections in two dimensions (category Euclidean plane geometry)
    In Euclidean geometry, two-dimensional rotations and reflections are two kinds of Euclidean plane isometries which are related to one another. A rotation...
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  • Thumbnail for Euclidean space
    commonly called respectively Euclidean lines and Euclidean planes. The qualifier "Euclidean" is used to distinguish Euclidean spaces from other spaces that...
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  • Thumbnail for Euclidean distance
    distance from a point to a line, in the Euclidean plane The distance from a point to a plane in three-dimensional Euclidean space The distance between two lines...
    26 KB (3,288 words) - 16:41, 30 April 2025
  • two-dimensional Euclidean space, the definite article is used, so the Euclidean plane refers to the whole space. Several notions of a plane may be defined...
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    their symmetry group type. Isometries of the Euclidean plane fall into four categories (see the article Euclidean plane isometry for more information). Translations...
    65 KB (6,485 words) - 13:43, 16 April 2025
  • Isometry group Quasi-isometry Dade isometry Euclidean isometry Euclidean plane isometry Itō isometry Isometric (disambiguation) Isometries in physics This...
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  • Thumbnail for Hyperbolic geometry
    a non-Euclidean geometry. The parallel postulate of Euclidean geometry is replaced with: For any given line R and point P not on R, in the plane containing...
    56 KB (6,970 words) - 13:36, 7 May 2025
  • Thumbnail for Tessellation
    Fyodorov proved that every periodic tiling of the plane features one of seventeen different groups of isometries. Fyodorov's work marked the unofficial beginning...
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  • the collection of them is then said to form an isometry group of the pseudo-Euclidean space. The isometry group of the subspace of a metric space consisting...
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  • Thumbnail for Poincaré half-plane model
    non-Euclidean geometry, the Poincaré half-plane model is a way of representing the hyperbolic plane using points in the familiar Euclidean plane. Specifically...
    24 KB (3,972 words) - 06:32, 7 December 2024
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    a Euclidean space to itself that is an isometry with a hyperplane as the set of fixed points; this set is called the axis (in dimension 2) or plane (in...
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  • Thumbnail for Congruence (geometry)
    Congruence (geometry) (category Euclidean geometry)
    UK, the three-bar equal sign ≡ (U+2261) is sometimes used. Euclidean plane isometry Isometry Clapham, C.; Nicholson, J. (2009). "Oxford Concise Dictionary...
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  • Thumbnail for Symmetry group
    symmetries form a subgroup of the isometry group of the ambient space. This article mainly considers symmetry groups in Euclidean geometry, but the concept may...
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  • sphere geometry Non-Euclidean geometry Noncommutative algebraic geometry Noncommutative geometry Ordered geometry Parabolic geometry Plane geometry Projective...
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  • Thumbnail for Cartesian coordinate system
    three mutually perpendicular planes. More generally, n Cartesian coordinates specify the point in an n-dimensional Euclidean space for any dimension n....
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  • Applications of dual quaternions to 2D geometry (category Euclidean plane geometry)
    Dual number Dual quaternion Clifford algebra Euclidean plane isometry Affine transformation Projective plane Homogeneous coordinates SLERP Conformal geometric...
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  • fixed point of an isometry group is a point that is a fixed point for every isometry in the group. For any isometry group in Euclidean space the set of...
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  • Point groups in three dimensions (category Euclidean symmetries)
    of all isometries that leave the origin fixed, or correspondingly, the group of orthogonal matrices. O(3) itself is a subgroup of the Euclidean group E(3)...
    60 KB (5,111 words) - 17:13, 25 March 2025
  • Thumbnail for Riemannian manifold
    The case of Euclidean and hyperbolic space forms can likewise be reduced to group theory, based on study of the isometry group of Euclidean space and hyperbolic...
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  • Thumbnail for Metric space
    Euclidean space with its usual notion of distance. Other well-known examples are a sphere equipped with the angular distance and the hyperbolic plane...
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  • of the Euclidean group with in each subset one isometries that keeps the origins fixed, and its combination with all translations. Each isometry is given...
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  • Thumbnail for Discrete group
    the isometry group of the sphere (when T is finite), the Euclidean plane (when T has a Z + Z subgroup of finite index), or the hyperbolic plane. Fuchsian...
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  • mathematics, the group of rotations about a fixed point in four-dimensional Euclidean space is denoted SO(4). The name comes from the fact that it is the special...
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  • Improper rotation (category Euclidean symmetries)
    rotoinversion) is an isometry in Euclidean space that is a combination of a rotation about an axis and a reflection in a plane perpendicular to that...
    8 KB (815 words) - 20:44, 15 June 2024
  • Thumbnail for Dihedral group
    Dihedral group (category Euclidean symmetries)
    abstract group Dn, and a common way to visualize it, is the group of Euclidean plane isometries which keep the origin fixed. These groups form one of the two...
    28 KB (3,499 words) - 03:13, 9 June 2025
  • Thumbnail for Rotation (mathematics)
    Rotation (mathematics) (category Euclidean symmetries)
    two-dimensional direct motion is either a translation or a rotation; see Euclidean plane isometry for details. Rotations in three-dimensional space differ from those...
    24 KB (3,129 words) - 00:52, 19 November 2024
  • Thumbnail for Quasi-isometry
    there exists a quasi-isometry f : M 1 → M 2 {\displaystyle f:M_{1}\to M_{2}} . The map between the Euclidean plane and the plane with the Manhattan distance...
    15 KB (2,392 words) - 03:39, 7 July 2025