• Thumbnail for Intersection curve
    In geometry, an intersection curve is a curve that is common to two geometric objects. In the simplest case, the intersection of two non-parallel planes...
    10 KB (1,776 words) - 10:44, 18 November 2023
  • Thumbnail for Intersection (geometry)
    In geometry, an intersection is a point, line, or curve common to two or more objects (such as lines, curves, planes, and surfaces). The simplest case...
    20 KB (3,915 words) - 20:51, 10 September 2024
  • Thumbnail for Dandelin spheres
    constant, then the above argument proves that the intersection curve C is indeed an ellipse. That the intersection of the plane with the cone is symmetric about...
    11 KB (1,203 words) - 00:22, 16 March 2025
  • Thumbnail for Intersection
    polyhedron with a line Line segment intersection Intersection curve Determination of the intersection of flats – linear geometric objects embedded in a...
    6 KB (817 words) - 11:00, 11 December 2024
  • Thumbnail for Implicit curve
    conditions under which an implicit curve locally is given by the graph of a function (so in particular it has no self-intersections). If the defining relations...
    17 KB (3,430 words) - 09:06, 2 August 2024
  • Thumbnail for Parabola
    Parabola (redirect from Parabolic curve)
    In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical...
    80 KB (13,423 words) - 04:02, 29 April 2025
  • any curves with negative self-intersection. In fact, Castelnuovo’s contraction theorem states the converse: every (−1)-curve is the exceptional curve of...
    17 KB (2,216 words) - 20:50, 8 April 2025
  • Thumbnail for Elliptic curve
    coefficients a and b in K. The curve is required to be non-singular, which means that the curve has no cusps or self-intersections. (This is equivalent to the...
    54 KB (8,433 words) - 17:05, 17 March 2025
  • Thumbnail for Nonzero-rule
    infinity. Find all the intersections of C with this ray. Score up the winding number as follows: for every clockwise intersection (the curve passing through...
    3 KB (405 words) - 04:16, 3 January 2024
  • Thumbnail for Viviani's curve
    {\displaystyle z} respectively yields: The orthogonal projection of the intersection curve onto the x {\displaystyle x} - y {\displaystyle y} -plane is the circle...
    8 KB (1,343 words) - 23:52, 14 December 2024
  • Thumbnail for Algebraic curve
    mathematics, an affine algebraic plane curve is the zero set of a polynomial in two variables. A projective algebraic plane curve is the zero set in a projective...
    49 KB (7,993 words) - 07:00, 5 May 2025
  • Thumbnail for Tennis racket theorem
    trajectory of ω ( t ) {\displaystyle \omega (t)} must stay on the intersection curve between two ellipsoids defined by { ∑ i I i ω i 2 = ∑ i I i ω i (...
    17 KB (2,708 words) - 15:00, 25 April 2025
  • in algebraic geometry, the intersection number generalizes the intuitive notion of counting the number of times two curves intersect to higher dimensions...
    18 KB (3,298 words) - 13:08, 13 June 2024
  • Thumbnail for IS–LM model
    IS–LM model (redirect from Islm curve)
    run in a closed economy. The intersection of the "investment–saving" (IS) and "liquidity preference–money supply" (LM) curves illustrates a "general equilibrium"...
    29 KB (3,743 words) - 22:05, 20 February 2025
  • Thumbnail for Bézier curve
    A Bézier curve (/ˈbɛz.i.eɪ/ BEH-zee-ay, French pronunciation: [bezje]) is a parametric curve used in computer graphics and related fields. A set of discrete...
    50 KB (6,981 words) - 14:05, 10 February 2025
  • A roundabout, a rotary and a traffic circle are types of circular intersection or junction in which road traffic is permitted to flow in one direction...
    109 KB (11,696 words) - 15:32, 4 May 2025
  • In mathematical analysis, a space-filling curve is a curve whose range reaches every point in a higher dimensional region, typically the unit square (or...
    15 KB (1,969 words) - 10:33, 1 May 2025
  • Thumbnail for Sphere–cylinder intersection
    space, the curve formed from the intersection between a sphere and a cylinder can be a circle, a point, the empty set, or a special type of curve. For the...
    6 KB (1,052 words) - 03:38, 30 April 2025
  • Thumbnail for Curve
    mathematics, a curve (also called a curved line in older texts) is an object similar to a line, but that does not have to be straight. Intuitively, a curve may be...
    26 KB (3,656 words) - 15:31, 1 April 2025
  • that point. The curve of intersection of the plane and the surface has zero curvature at that point. An asymptotic curve is a curve such that, at each...
    3 KB (306 words) - 12:29, 22 January 2025
  • Thumbnail for Dual curve
    dual curve of a given plane curve C is a curve in the dual projective plane consisting of the set of lines tangent to C. There is a map from a curve to...
    11 KB (1,751 words) - 10:41, 3 April 2024
  • Thumbnail for Conic section
    and beautiful results in Euclidean geometry. A conic is the curve obtained as the intersection of a plane, called the cutting plane, with the surface of...
    69 KB (9,174 words) - 22:09, 19 April 2025
  • Thumbnail for Brachistochrone curve
    mathematics, a brachistochrone curve (from Ancient Greek βράχιστος χρόνος (brákhistos khrónos) 'shortest time'), or curve of fastest descent, is the one...
    37 KB (6,090 words) - 21:52, 19 February 2025
  • compute all parts of the intersection curve. If two surfaces intersect, the result will be a set of isolated points, a set of curves, a set of overlapping...
    2 KB (222 words) - 18:20, 8 January 2025
  • Thumbnail for Polar curve
    exactly the points of intersection of the two first polars. By Bézout's theorem these curves have (n−1)2 points of intersection and these are the poles...
    7 KB (1,204 words) - 15:00, 19 March 2020
  • Thumbnail for Intersection (road)
    An intersection or an at-grade junction is a junction where two or more roads converge, diverge, meet or cross at the same height, as opposed to an interchange...
    18 KB (1,965 words) - 22:37, 28 March 2025
  • Thumbnail for Villarceau circles
    and shows that intersection with a bitangent plane must produce two conics of the same type as the generator when the intersection curve is real. The torus...
    11 KB (1,496 words) - 14:39, 4 November 2024
  • Bézout's theorem (category Intersection theory)
    volume 1 of his Principia in 1687, where he claims that two curves have a number of intersection points given by the product of their degrees. However, Newton...
    24 KB (3,574 words) - 17:05, 6 April 2025
  • Thumbnail for Geometric design of roads
    roadway, measured in meters or feet L = curve length (along the x-axis) PVI = point of vertical interception (intersection of initial and final grades) S = headlight...
    44 KB (5,775 words) - 16:23, 1 May 2025
  • Thumbnail for Confocal conic sections
    Dupin's theorem on threefold orthogonal systems of surfaces, the intersection curve of any two confocal quadrics is a line of curvature. Analogously to...
    22 KB (3,676 words) - 02:29, 20 January 2025