• Thumbnail for Winding number
    mathematics, the winding number or winding index of a closed curve in the plane around a given point is an integer representing the total number of times that...
    16 KB (2,292 words) - 13:53, 6 May 2025
  • Thumbnail for Point in polygon
    a polygon is to compute the given point's winding number with respect to the polygon. If the winding number is non-zero, the point lies inside the polygon...
    12 KB (1,530 words) - 06:36, 3 March 2025
  • 1: 167–244. Michał Misiurewicz (ed.). "Rotation theory". Scholarpedia. Weisstein, Eric W. "Map Winding Number". From MathWorld--A Wolfram Web Resource....
    5 KB (690 words) - 20:26, 19 October 2024
  • differential equations. The topological quantum number of a solution is sometimes called the winding number of the solution, or, more precisely, it is the...
    7 KB (858 words) - 18:53, 9 September 2024
  • point has negative winding number. Therefore, the winding number of a curve may be any integer. The pictures above show curves with winding numbers between...
    18 KB (2,438 words) - 07:28, 25 May 2025
  • Thumbnail for Nonzero-rule
    viewed from P) add 1. If the total winding number is zero, P is outside C; otherwise, it is inside. The winding number is effectively a count of how many...
    3 KB (405 words) - 04:16, 3 January 2024
  • results for the duality between the fermion spectrum and the topological winding number of the non-linear sigma model have been obtained by Dan Freed. This...
    25 KB (3,176 words) - 00:31, 25 May 2025
  • Danish filmmaker Romain Winding (born 1951), French cinematographer Victor Winding (1929–2014), British actor Other uses: Winding number, an integer representing...
    1 KB (169 words) - 19:52, 29 April 2024
  • Thumbnail for Su–Schrieffer–Heeger model
    physical consequences of having different winding number become more apparent for a finite chain with an even number of N {\displaystyle N} lattice sites....
    10 KB (1,524 words) - 17:40, 24 May 2025
  • Thumbnail for Riemann mapping theorem
    G} , then the winding number of γ {\displaystyle \gamma } about w {\displaystyle w} is 2 n {\displaystyle 2^{n}} times the winding number of f n ∘ γ {\displaystyle...
    44 KB (7,478 words) - 16:34, 20 May 2025
  • equal to 2πN for an integer N called the turning number or index of the curve. N is the winding number about the origin of the hodograph of the curve parametrized...
    147 KB (17,252 words) - 02:48, 29 May 2025
  • hand, using the Cauchy integral formula for the winding number, it can be seen that the winding number is constant on connected components of the complement...
    30 KB (4,226 words) - 11:59, 26 September 2024
  • Thumbnail for Turn (angle)
    Turn (angle) (redirect from Number of turns)
    electromagnetic coils (e.g., transformers), rotating objects, and the winding number of curves. Divisions of a turn include the half-turn and quarter-turn...
    23 KB (1,917 words) - 04:38, 18 May 2025
  • Thumbnail for Complex number
    methods such as Liouville's theorem, or topological ones such as the winding number, or a proof combining Galois theory and the fact that any real polynomial...
    91 KB (12,021 words) - 17:33, 29 May 2025
  • transformations which preserve the winding number are called small gauge transformations while ones that change the winding number are called large gauge transformations...
    14 KB (2,063 words) - 19:19, 25 May 2025
  • Thumbnail for Immersion (mathematics)
    immersions of the circle in the plane are classified by the winding number, which is also the number of double points counted algebraically (i.e. with signs)...
    23 KB (2,874 words) - 09:43, 3 September 2024
  • Thumbnail for Residue theorem
    ⁡ ( f , a k ) {\displaystyle \operatorname {Res} (f,a_{k})} and the winding number of γ {\displaystyle \gamma } around a k {\displaystyle a_{k}} by I ⁡...
    13 KB (3,290 words) - 09:31, 29 January 2025
  • "The Long and Winding Road" is a song by the English rock band the Beatles from their 1970 album Let It Be. It was written by Paul McCartney and credited...
    55 KB (5,967 words) - 15:57, 27 April 2025
  • Thumbnail for Total curvature
    of 2π, where N is called the index of the curve or turning number – it is the winding number of the unit tangent vector about the origin, or equivalently...
    5 KB (588 words) - 16:37, 1 April 2025
  • Thumbnail for Argument principle
    contractible to a point inside Ω. For each point z ∈ Ω, let n(C,z) be the winding number of C around z. Then 1 2 π i ∮ C f ′ ( z ) f ( z ) d z = ∑ a n ( C ,...
    9 KB (1,612 words) - 07:49, 26 May 2025
  • Thumbnail for Coil winding technology
    In electrical engineering, coil winding is the manufacture of electromagnetic coils. Coils are used as components of circuits, and to provide the magnetic...
    64 KB (9,796 words) - 19:35, 16 May 2025
  • Thumbnail for Magnetic skyrmion
    as the winding number, the topological charge (although it is unrelated to 'charge' in the electrical sense), the topological quantum number (although...
    36 KB (4,347 words) - 21:26, 25 May 2025
  • Instead, a more robust approach is the Generalized Winding Number. Inspired by the 2D winding number, this approach uses the solid angle at q {\displaystyle...
    29 KB (4,211 words) - 11:57, 8 April 2025
  • current of one ampere flowing in a single-turn loop. Turns refers to the winding number of an electrical conductor composing an electromagnetic coil. For example...
    3 KB (341 words) - 11:29, 30 July 2024
  • {\displaystyle B(z_{0},r)} , taken with its positive orientation. The winding number of f ( γ ) {\displaystyle f(\gamma )} with respect to the point f (...
    17 KB (2,729 words) - 18:14, 14 June 2024
  • more times. The number of times the string winds around a circle is called the winding number. If a string has momentum p and winding number n in one description...
    62 KB (7,721 words) - 19:26, 23 May 2025
  • Thumbnail for Rouché's theorem
    _{f\circ C}{\frac {dz}{z}}=\mathrm {Ind} _{f\circ C}(0),} i.e., the winding number of the closed curve f ∘ C {\displaystyle f\circ C} around the origin;...
    11 KB (1,881 words) - 21:08, 6 May 2025
  • homomorphism to H1(2πiZ|U) gives the winding number for each loop. So this homomorphism is therefore a generalized winding number and measures the failure of U...
    3 KB (485 words) - 15:07, 22 June 2020
  • Thumbnail for Residue (complex analysis)
    where I ⁡ ( C , a k ) {\displaystyle \operatorname {I} (C,a_{k})} , the winding number, is 1 {\displaystyle 1} if a k {\displaystyle a_{k}} is in the interior...
    15 KB (3,101 words) - 12:03, 13 December 2024
  • Thumbnail for Pick's theorem
    using a formula involving the winding number of the polygon around each integer point as well as its total winding number. The Reeve tetrahedra in three...
    20 KB (2,339 words) - 01:48, 17 December 2024