• Thumbnail for Bipolar coordinates
    Bipolar coordinates are a two-dimensional orthogonal coordinate system based on the Apollonian circles. Confusingly, the same term is also sometimes used...
    9 KB (1,440 words) - 18:22, 16 August 2023
  • Thumbnail for Two-center bipolar coordinates
    In mathematics, two-center bipolar coordinates is a coordinate system based on two coordinates which give distances from two fixed centers c 1 {\displaystyle...
    2 KB (336 words) - 23:42, 12 May 2024
  • Thumbnail for Bipolar cylindrical coordinates
    Bipolar cylindrical coordinates are a three-dimensional orthogonal coordinate system that results from projecting the two-dimensional bipolar coordinate...
    5 KB (758 words) - 01:27, 27 March 2021
  • (x,y)} be the standard Cartesian coordinates, and ( r , θ ) {\displaystyle (r,\theta )} the standard polar coordinates. x = r cos ⁡ θ y = r sin ⁡ θ ∂ (...
    11 KB (2,162 words) - 22:05, 20 May 2024
  • poles of a star Bipolar coordinates, a two-dimensional orthogonal coordinate system Bipolar set, a derivative of a polar set Bipolar theorem, a theorem...
    3 KB (389 words) - 20:04, 21 March 2024
  • Thumbnail for Toroidal coordinates
    Toroidal coordinates are a three-dimensional orthogonal coordinate system that results from rotating the two-dimensional bipolar coordinate system about...
    16 KB (2,912 words) - 01:48, 10 December 2023
  • Thumbnail for Apollonian circles
    family orthogonally, and vice versa. These circles form the basis for bipolar coordinates. They were discovered by Apollonius of Perga, a renowned Greek geometer...
    10 KB (1,223 words) - 01:13, 11 March 2024
  • Thumbnail for Radical axis
    of a system of bipolar coordinates. In that case, the radical axis is simply the y {\displaystyle y} -axis of this system of coordinates. Every circle...
    22 KB (4,232 words) - 22:15, 25 March 2024
  • Thumbnail for Elliptic coordinate system
    the momenta). Curvilinear coordinates Ellipsoidal coordinates Generalized coordinates Bipolar coordinates "Elliptic coordinates", Encyclopedia of Mathematics...
    9 KB (1,599 words) - 16:25, 17 November 2023
  • Thumbnail for Bispherical coordinates
    Bispherical coordinates are a three-dimensional orthogonal coordinate system that results from rotating the two-dimensional bipolar coordinate system...
    6 KB (901 words) - 17:03, 17 January 2024
  • Thumbnail for Biology of bipolar disorder
    Bipolar disorder is an affective disorder characterized by periods of elevated and depressed mood. The cause and mechanism of bipolar disorder is not...
    97 KB (11,133 words) - 04:47, 20 May 2024
  • Thumbnail for Biangular coordinates
    biangular coordinates to two-center bipolar coordinates. Biangular coordinates can be used in geometric modelling and CAD. Two-center bipolar coordinates Bipolar...
    2 KB (228 words) - 20:51, 12 May 2024
  • circles that pass through both foci. These circles form the basis of bipolar coordinates. The circles of Apollonius of a triangle are three circles, each...
    15 KB (2,411 words) - 23:06, 27 May 2024
  • Thumbnail for Lemniscate of Bernoulli
    |z-c||z+c|=c^{2}} In two-center bipolar coordinates: r r ′ = c 2 {\displaystyle rr'=c^{2}} In rational polar coordinates: Q = 2 s − 1 {\displaystyle Q=2s-1}...
    9 KB (1,199 words) - 12:16, 12 April 2024
  • Thumbnail for Polar plotter
    known as polargraph or Kritzler is a plotter which uses two-center bipolar coordinates to produce vector drawings using a pen suspended from strings connected...
    2 KB (185 words) - 17:27, 15 February 2023
  • En Cartesian chart Euclidean plane E2 Bipolar coordinates Biangular coordinates Two-center bipolar coordinates Euclidean space E3 Polar spherical chart...
    4 KB (173 words) - 10:51, 17 February 2024
  • In mathematics, orthogonal coordinates are defined as a set of d coordinates q = ( q 1 , q 2 , … , q d ) {\displaystyle \mathbf {q} =(q^{1},q^{2},\dots...
    30 KB (3,360 words) - 01:37, 7 June 2024
  • Thumbnail for Cassini oval
    with 3 defining points surface with 6 defining points Two-center bipolar coordinates Cassini Cohen 1962. Basset p. 163 Lawden "Cassini oval - Encyclopedia...
    13 KB (2,000 words) - 14:33, 23 June 2024
  • Hamilton–Jacobi equation is separable in both spherical coordinates and parabolic coordinates, as described below. Maximally superintegrable systems follow...
    79 KB (10,213 words) - 23:48, 10 May 2024
  • HVDC Troll (category Lists of coordinates)
    The HVDC Troll is a bipolar high-voltage direct current (HVDC) electric power transmission line for the supply of the gas compressor station on the offshore...
    4 KB (178 words) - 16:54, 2 September 2023
  • Thumbnail for Orthogonal circles
    Orthogonality Radical axis Power center (geometry) Apollonian circles Bipolar coordinates Chaplick, Steven; Förster, Henry; Kryven, Myroslav; Wolff, Alexander...
    3 KB (244 words) - 23:02, 12 May 2024
  • HVDC Three Gorges – Guangdong (category Lists of coordinates)
    Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) The HVDC...
    3 KB (121 words) - 11:43, 19 October 2021
  • Thumbnail for Cartesian oval
    was at the young age of 14 (almost 15). Cassini oval Two-center bipolar coordinates O'Connor, John J.; Robertson, Edmund F., "Cartesian Oval", MacTutor...
    8 KB (1,118 words) - 12:18, 10 March 2024
  • Thumbnail for Problem of Apollonius
    two fixed points. (As an aside, this definition is the basis of bipolar coordinates.) Thus, the solutions to Apollonius' problem are the intersections...
    99 KB (12,221 words) - 22:00, 2 May 2024
  • TransWest Express (category Lists of coordinates)
    Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) The TransWest...
    12 KB (1,008 words) - 03:59, 27 June 2024
  • Thumbnail for List of circle topics
    shape. Circle Circle anatomy Annulus (mathematics) Area of a disk Bipolar coordinates Central angle Circular sector Circular segment Circumference Concentric...
    9 KB (696 words) - 14:58, 22 March 2024
  • HVDC Three Gorges – Changzhou (category Lists of coordinates)
    The HVDC Three Gorges – Changzhou is an 940-kilometre (580 mi) long bipolar HVDC transmission line in China for the transmission of electric power from...
    4 KB (156 words) - 11:42, 19 October 2021
  • HVDC Tjæreborg (category Lists of coordinates)
    Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) The HVDC...
    2 KB (155 words) - 04:32, 9 March 2023
  • HVDC Inter-Island (category Lists of coordinates)
    Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) The HVDC...
    54 KB (6,705 words) - 08:11, 18 April 2024
  • HVDC Visby–Näs (category Lists of coordinates)
    Map all coordinates using OpenStreetMap Download coordinates as: KML GPX (all coordinates) GPX (primary coordinates) GPX (secondary coordinates) The HVDC...
    1 KB (134 words) - 11:19, 19 October 2021