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  2. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    The sequence behaviour from r=0.02 to r=4, one can visualize the horizontal coordinate as time, and the vertical coordinate either as a position in space at time t or as the population size at time t The animation shows the behaviour of the sequence x n {\displaystyle x_{n}} over different values of the parameter r.

  3. Real projective plane - Wikipedia

    en.wikipedia.org/wiki/Real_projective_plane

    Consider the function R 3R 4 given by (x, y, z) ↦ (xy, xz, y 2 − z 2, 2yz). This map restricts to a map whose domain is S 2 and, since each component is a homogeneous polynomial of even degree, it takes the same values in R 4 on each of any two antipodal points on S 2. This yields a map P 2 (R) → R 4. Moreover, this map is an embedding.

  4. Cobweb plot - Wikipedia

    en.wikipedia.org/wiki/Cobweb_plot

    A cobweb plot, known also as Lémeray Diagram or Verhulst diagram is a visual tool used in the dynamical systems field of mathematics to investigate the qualitative behaviour of one-dimensional iterated functions, such as the logistic map.

  5. Cartesian coordinate system - Wikipedia

    en.wikipedia.org/wiki/Cartesian_coordinate_system

    The black dot shows the point with coordinates x = 2, y = 3, and z = 4, or (2, 3, 4). A Cartesian coordinate system for a three-dimensional space consists of an ordered triplet of lines (the axes) that go through a common point (the origin), and are pair-wise perpendicular; an orientation for each axis; and a single unit of length for all three ...

  6. Coordinate system - Wikipedia

    en.wikipedia.org/wiki/Coordinate_system

    In the cylindrical coordinate system, a z-coordinate with the same meaning as in Cartesian coordinates is added to the r and θ polar coordinates giving a triple (r, θ, z). [8] Spherical coordinates take this a step further by converting the pair of cylindrical coordinates (r, z) to polar coordinates (ρ, φ) giving a triple (ρ, θ, φ). [9]

  7. Polar coordinate system - Wikipedia

    en.wikipedia.org/wiki/Polar_coordinate_system

    In green, the point with radial coordinate 3 and angular coordinate 60 degrees or (3, 60°). In blue, the point (4, 210°). In mathematics, the polar coordinate system specifies a given point in a plane by using a distance and an angle as its two coordinates. These are the point's distance from a reference point called the pole, and

  8. Universal Transverse Mercator coordinate system - Wikipedia

    en.wikipedia.org/wiki/Universal_Transverse...

    The Universal Transverse Mercator (UTM) is a map projection system for assigning coordinates to locations on the surface of the Earth.Like the traditional method of latitude and longitude, it is a horizontal position representation, which means it ignores altitude and treats the earth surface as a perfect ellipsoid.

  9. Transverse Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Transverse_Mercator_projection

    The projection coordinates resulting from the various developments of the ellipsoidal transverse Mercator are Cartesian coordinates such that the central meridian corresponds to the x axis and the equator corresponds to the y axis. Both x and y are defined for all values of λ and ϕ. The projection does not define a grid: the grid is an ...