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  2. Uncompressed video - Wikipedia

    en.wikipedia.org/wiki/Uncompressed_video

    Uncompressed video is digital video that either has never been compressed or was generated by decompressing previously compressed digital video. It is commonly used by video cameras, video monitors, video recording devices (including general-purpose computers), and in video processors that perform functions such as image resizing, image rotation, deinterlacing, and text and graphics overlay.

  3. Identity (2003 film) - Wikipedia

    en.wikipedia.org/wiki/Identity_(2003_film)

    Identity is a 2003 American slasher film directed by James Mangold, written by Michael Cooney, and starring John Cusack, Ray Liotta, and Amanda Peet with Alfred Molina, Clea DuVall, and Rebecca De Mornay.

  4. Proofs of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/Proofs_of_trigonometric...

    This geometric argument relies on definitions of arc length and area, which act as assumptions, so it is rather a condition imposed in construction of trigonometric functions than a provable property. [2] For the sine function, we can handle other values. If θ > π /2, then θ > 1. But sin θ ≤ 1 (because of the Pythagorean identity), so sin ...

  5. Trigonometric functions of matrices - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_functions_of...

    The analog of the Pythagorean trigonometric identity holds: [2] ⁡ + ⁡ = If X is a diagonal matrix, sin X and cos X are also diagonal matrices with (sin X) nn = sin(X nn) and (cos X) nn = cos(X nn), that is, they can be calculated by simply taking the sines or cosines of the matrices's diagonal components.

  6. Argentine Identity card - Wikipedia

    en.wikipedia.org/wiki/Argentine_Identity_card

    The Argentine Identity card, Spanish: Documento Nacional de Identidad pronounced [dˌokumˈɛnto nˌaθjonˈal dˈe ˌiðentiðˈad] ⓘ) or DNI [2] lit. ' National Identity Document ' [3]), is the main identity document for Argentine citizens, as well as temporary or permanent resident aliens (DNI Extranjero). It is issued at a person's birth ...

  7. Euler's formula - Wikipedia

    en.wikipedia.org/wiki/Euler's_formula

    r = | z | = √ x 2 + y 2 is the magnitude of z and; φ = arg z = atan2(y, x). φ is the argument of z, i.e., the angle between the x axis and the vector z measured counterclockwise in radians, which is defined up to addition of 2π. Many texts write φ = tan −1 ⁠ y / x ⁠ instead of φ = atan2(y, x), but the first equation needs ...

  8. Parseval's theorem - Wikipedia

    en.wikipedia.org/wiki/Parseval's_theorem

    It is also known as Rayleigh's energy theorem, or Rayleigh's identity, after John William Strutt, Lord Rayleigh. [ 2 ] Although the term "Parseval's theorem" is often used to describe the unitarity of any Fourier transform, especially in physics , the most general form of this property is more properly called the Plancherel theorem .

  9. Differentiation of trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Differentiation_of...

    For example, the derivative of the sine function is written sin ′ (a) = cos(a), meaning that the rate of change of sin(x) at a particular angle x = a is given by the cosine of that angle. All derivatives of circular trigonometric functions can be found from those of sin( x ) and cos( x ) by means of the quotient rule applied to functions such ...