• Thumbnail for Sinc function
    engineering, the sinc function, denoted by sinc(x), has two forms, normalized and unnormalized. In mathematics, the historical unnormalized sinc function is defined...
    22 KB (3,054 words) - 00:36, 24 October 2024
  • Thumbnail for Sinc filter
    In signal processing, a sinc filter can refer to either a sinc-in-time filter whose impulse response is a sinc function and whose frequency response is...
    10 KB (1,295 words) - 04:18, 12 September 2024
  • Thumbnail for Rectangular function
    rectangular wave. The rect function has been introduced by Woodward in as an ideal cutout operator, together with the sinc function as an ideal interpolation...
    11 KB (1,665 words) - 22:28, 23 October 2024
  • Thumbnail for Lanczos resampling
    copy of the Lanczos kernel, which is a sinc function windowed by the central lobe of a second, longer, sinc function. The sum of these translated and scaled...
    12 KB (1,484 words) - 16:56, 18 August 2024
  • Thumbnail for Ringing artifacts
    time domain, the cause of this type of ringing is the ripples in the sinc function, which is the impulse response (time domain representation) of a perfect...
    26 KB (3,411 words) - 05:17, 22 July 2023
  • }{N}}\right)\right)} If we introduce the normalized sinc function sinc ⁡ ( x ) = sin ⁡ ( π x ) π x {\textstyle \operatorname {sinc} (x)={\frac {\sin(\pi x)}{\pi x}}} for...
    37 KB (5,592 words) - 19:22, 1 October 2024
  • Whittaker–Shannon interpolation formula or sinc interpolation is a method to construct a continuous-time bandlimited function from a sequence of real numbers. The...
    6 KB (776 words) - 20:56, 20 June 2024
  • Thumbnail for Bessel function
    zeroth spherical Bessel function j0(x) is also known as the (unnormalized) sinc function. The first few spherical Bessel functions are: j 0 ( x ) = sin ⁡...
    71 KB (11,611 words) - 14:12, 1 November 2024
  • Thumbnail for Gamma function
    (-z)={\frac {\pi z}{\sin(\pi z)}}={\frac {1}{\operatorname {sinc} (z)}}} using the normalized sinc function; while the multiplication theorem becomes: Π ( z m...
    91 KB (13,517 words) - 14:35, 30 October 2024
  • Thumbnail for Nyquist–Shannon sampling theorem
    sinc function scaled to the sample value, x ( n T ) . {\displaystyle x(nT).} Subsequently, the sinc functions are summed into a continuous function....
    51 KB (6,711 words) - 16:22, 9 October 2024
  • Thumbnail for Window function
    product of two sinc functions vs. an Airy function, respectively. Conventions: w 0 ( x ) {\displaystyle w_{0}(x)} is a zero-phase function (symmetrical...
    73 KB (8,656 words) - 19:19, 29 October 2024
  • Thumbnail for Triangular function
    sinc function. Källén function, also known as triangle function Tent map Triangular distribution Triangle wave, a piecewise linear periodic function Trigonometric...
    5 KB (814 words) - 21:48, 17 August 2022
  • Bessel–Clifford function Kelvin functions Legendre function: From the theory of spherical harmonics. Scorer's function Sinc function Hermite polynomials...
    10 KB (1,065 words) - 20:52, 29 October 2024
  • Thumbnail for Dirac delta function
    origin. Other approximations to the identity of this kind include the sinc function (used widely in electronics and telecommunications) η ε ( x ) = 1 π...
    94 KB (14,079 words) - 09:16, 27 October 2024
  • Shannon wavelet (redirect from Sinc wavelet)
    wavelet. First, we define the scaling function to be the sinc function. ϕ (Sha) ( t ) := sin ⁡ π t π t = sinc ⁡ ( t ) . {\displaystyle \phi ^{\text{(Sha)}}(t):={\frac...
    6 KB (1,205 words) - 00:12, 24 February 2024
  • Thumbnail for Sine and cosine
    generalization to vertex angles Proofs of trigonometric identities Sinc function Sine and cosine transforms Sine integral Sine quadrant Sine wave Sine–Gordon...
    55 KB (6,966 words) - 03:10, 30 October 2024
  • filter or interpolation functions, as though the data were a two dimensional function of continuous x and y. The sinc function of the radius has too long...
    24 KB (3,269 words) - 17:47, 23 April 2024
  • Thumbnail for Removable singularity
    Removable singularity (category Analytic functions)
    the resulting function is regular in a neighbourhood of that point. For instance, the (unnormalized) sinc function, as defined by sinc ( z ) = sin ⁡ z...
    5 KB (941 words) - 09:32, 7 November 2023
  • Thumbnail for Overshoot (signal)
    step function by the integral up to a certain frequency, which yields the sine integral. This can be interpreted as convolution with the sinc function; in...
    8 KB (952 words) - 23:20, 13 September 2024
  • Thumbnail for Arg max
    Arg max (category Inverse functions)
    if and only if x − 5 = 0. {\displaystyle x-5=0.} "The Unnormalized Sinc Function Archived 2017-02-15 at the Wayback Machine", University of Sydney Rockafellar...
    9 KB (1,500 words) - 07:15, 27 May 2024
  • Thumbnail for Maximum and minimum
    Paul. "Minimization and maximization refresher". "The Unnormalized Sinc Function Archived 2017-02-15 at the Wayback Machine", University of Sydney For...
    17 KB (2,094 words) - 04:02, 23 October 2024
  • Thumbnail for Dirichlet integral
    Dirichlet integral (category Special functions)
    Gustav Lejeune Dirichlet, one of which is the improper integral of the sinc function over the positive real line: ∫ 0 ∞ sin ⁡ x x d x = π 2 . {\displaystyle...
    14 KB (2,904 words) - 07:31, 3 February 2024
  • signal by the rectangular function in the frequency domain or, equivalently, convolution with its impulse response, a sinc function, in the time domain. However...
    31 KB (4,640 words) - 09:43, 13 July 2024
  • x ≠ − 2. {\displaystyle x\neq -2.} Since the function sine is continuous on all reals, the sinc function G ( x ) = sin ⁡ ( x ) / x , {\displaystyle G(x)=\sin(x)/x...
    61 KB (9,404 words) - 19:48, 25 October 2024
  • Thumbnail for Pulse wave
    x(t)} can be written using the Sinc function, using the definition sinc ⁡ x = sin ⁡ π x π x {\displaystyle \operatorname {sinc} x={\frac {\sin \pi x}{\pi...
    6 KB (725 words) - 16:34, 20 February 2024
  • Thumbnail for Trigonometric integral
    {\frac {\sin(t)}{t}}} is the sinc function, and also the zeroth spherical Bessel function. Since sinc is an even entire function (holomorphic over the entire...
    17 KB (3,230 words) - 11:40, 21 October 2024
  • the corresponding sinc function is zero at every other sample point (except the center one). The product with the window function does not alter the...
    18 KB (3,089 words) - 12:26, 18 August 2024
  • Thumbnail for Hann function
    \operatorname {sinc} (Lf)\triangleq {\frac {\sin(\pi Lf)}{\pi Lf}}.} Transforming each term: W 0 ( f ) = 1 2 sinc ⁡ ( L f ) + 1 4 sinc ⁡ ( L ( f − 1 /...
    10 KB (1,667 words) - 20:37, 16 April 2024
  • Thumbnail for Aitoff projection
    \left(\cos \varphi \cos {\frac {\lambda }{2}}\right)\,} and sinc α is the unnormalized sinc function with the discontinuity removed. In all of these formulas...
    2 KB (300 words) - 13:45, 24 July 2023
  • Thumbnail for Sigma approximation
    the normalized sinc function sinc ⁡ x = sin ⁡ π x π x . {\displaystyle \operatorname {sinc} x={\frac {\sin \pi x}{\pi x}}.} The term sinc ⁡ k m {\displaystyle...
    2 KB (237 words) - 16:14, 21 June 2023