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  2. X&Y - Wikipedia

    en.wikipedia.org/wiki/X&Y

    X&Y is the third studio album by British band Coldplay, released on 6 June 2005 by Parlophone in the United Kingdom, and a day later by Capitol Records in the United States. Produced by Coldplay and producer Danton Supple , the album was recorded during a turbulent period for the band, during which their manager and creative director, Phil ...

  3. X+Y - Wikipedia

    en.wikipedia.org/wiki/X+Y

    X+Y, released in the US as A Brilliant Young Mind, is a 2014 British drama film directed by Morgan Matthews and starring Asa Butterfield, Rafe Spall and Sally Hawkins. [ 2 ] [ 3 ] The film, inspired by the 2007 documentary Beautiful Young Minds , [ 4 ] focuses on a teenage English mathematics prodigy named Nathan (Asa Butterfield) who has ...

  4. X + Y sorting - Wikipedia

    en.wikipedia.org/wiki/X_+_Y_sorting

    [1] [3] A variant of the problem sorts the sumset , the set of sums of pairs, with duplicate sums condensed to a single value. For this variant, the size of the sumset may be significantly smaller than n 2 {\displaystyle n^{2}} , and output-sensitive algorithms for constructing it have been investigated.

  5. Sum of normally distributed random variables - Wikipedia

    en.wikipedia.org/wiki/Sum_of_normally...

    To determine the value (), note that we rotated the plane so that the line x+y = z now runs vertically with x-intercept equal to c. So c is just the distance from the origin to the line x + y = z along the perpendicular bisector, which meets the line at its nearest point to the origin, in this case ( z / 2 , z / 2 ) {\displaystyle (z/2,z/2)\,} .

  6. Rotation of axes in two dimensions - Wikipedia

    en.wikipedia.org/wiki/Rotation_of_axes_in_two...

    In mathematics, a rotation of axes in two dimensions is a mapping from an xy-Cartesian coordinate system to an x′y′-Cartesian coordinate system in which the origin is kept fixed and the x′ and y′ axes are obtained by rotating the x and y axes counterclockwise through an angle .

  7. X/Y - Wikipedia

    en.wikipedia.org/wiki/X/Y

    X/Y is a 2014 American drama film written and directed by Ryan Piers Williams and starring America Ferrera, Ryan Piers Williams, Melonie Diaz, Jon Paul Phillips, Amber Tamblyn, David Harbour, and Common. [1] [2] The film premiered at the Tribeca Film Festival on April 19, 2014. [3]

  8. Relation (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Relation_(mathematics)

    (x,y) ∈ R div. A path from x to y exists in the Hasse diagram representing R div. An edge from x to y exists in the directed graph representing R div. In the Boolean matrix representing R div, the element in line x, column y is "". As another example, define the relation R el on R by x R el y if x 2 + xy + y 2 = 1.

  9. XY sex-determination system - Wikipedia

    en.wikipedia.org/wiki/XY_sex-determination_system

    In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively. Hormone levels in the male parent affect the sex ratio of sperm in humans. [25]