• Thumbnail for Rectangular function
    The rectangular function (also known as the rectangle function, rect function, Pi function, Heaviside Pi function, gate function, unit pulse, or the normalized...
    10 KB (1,625 words) - 21:11, 28 May 2025
  • Thumbnail for Window function
    diffraction from rectangular vs. circular apertures, which can be visualized in terms of the product of two sinc functions vs. an Airy function, respectively...
    74 KB (8,875 words) - 04:15, 25 June 2025
  • Thumbnail for Continuous uniform distribution
    probability theory and statistics, the continuous uniform distributions or rectangular distributions are a family of symmetric probability distributions. Such...
    28 KB (4,230 words) - 23:30, 5 April 2025
  • Thumbnail for Step function
    system. The rectangular function, the normalized boxcar function, is used to model a unit pulse. The integer part function is not a step function according...
    7 KB (947 words) - 18:31, 16 February 2025
  • Thumbnail for Pulse wave
    Pulse wave (redirect from Rectangular wave)
    wave or pulse train or rectangular wave is a non-sinusoidal waveform that is the periodic version of the rectangular function. It is held high a percent...
    6 KB (713 words) - 14:46, 17 May 2025
  • Thumbnail for Sinc function
    everywhere and hence an entire function. The π-normalized sinc function is the Fourier transform of the rectangular function with no scaling. It is used...
    23 KB (3,296 words) - 04:48, 12 July 2025
  • Thumbnail for Heaviside step function
    brackets Negative number Rectangular function Sign function Sine integral Step response Weisstein, Eric W. "Heaviside Step Function". MathWorld. Bracewell...
    14 KB (2,157 words) - 11:06, 13 June 2025
  • Thumbnail for Sinc filter
    response is a sinc function and whose frequency response is rectangular, or to a sinc-in-frequency filter whose impulse response is rectangular and whose frequency...
    10 KB (1,305 words) - 14:41, 27 April 2025
  • Thumbnail for Triangular function
    Equivalently, it may be defined as the convolution of two identical unit rectangular functions: tri ⁡ ( x ) = rect ⁡ ( x ) ∗ rect ⁡ ( x ) = ∫ − ∞ ∞ rect ⁡ ( x...
    6 KB (998 words) - 12:23, 26 January 2025
  • The Huber loss is the convolution of the absolute value function with the rectangular function, scaled and translated. Thus it "smoothens out" the former's...
    8 KB (1,098 words) - 15:41, 14 May 2025
  • Thumbnail for Dirac delta function
    \left[-{\frac {1}{2}},{\frac {1}{2}}\right]} , also known as the rectangular function, then: η ε ( x ) = 1 ε rect ⁡ ( x ε ) = { 1 ε , − ε 2 < x < ε 2 ...
    97 KB (14,360 words) - 10:41, 13 July 2025
  • Thumbnail for Ringing artifacts
    domain by a rectangular function causes ripples in the frequency domain for the same reason as a brick-wall low pass filter (rectangular function in the frequency...
    26 KB (3,411 words) - 05:17, 22 July 2023
  • Thumbnail for Boxcar function
    low-pass filter. Boxcar averager Rectangular function Step function Top-hat filter Weisstein, Eric W. "Boxcar Function". MathWorld. Retrieved 13 September...
    2 KB (203 words) - 01:21, 15 November 2024
  • Thumbnail for Fourier transform
    For example, the Fourier transform of the rectangular function, which is integrable, is the sinc function, which is not Lebesgue integrable, because...
    177 KB (21,313 words) - 19:14, 8 July 2025
  • Thumbnail for Square wave (waveform)
    can also be defined with respect to the Heaviside step function u(t) or the rectangular function Π(t): x ( t ) = 2 [ ∑ n = − ∞ ∞ Π ( 2 ( t − n T ) T −...
    10 KB (1,295 words) - 11:45, 22 March 2025
  • a signal by the rectangular function in the frequency domain or, equivalently, convolution with its impulse response, a sinc function, in the time domain...
    32 KB (4,696 words) - 20:25, 28 February 2025
  • Thumbnail for Sign function
    Heaviside step function Negative number Rectangular function Sigmoid function (Hard sigmoid) Step function (Piecewise constant function) Three-way comparison...
    16 KB (2,711 words) - 09:57, 3 June 2025
  • The integral of the Dirac delta function. Sawtooth wave Square wave Triangle wave Rectangular function Floor function: Largest integer less than or equal...
    10 KB (1,065 words) - 19:46, 12 July 2025
  • {\displaystyle \Pi (x)\,\!} (Pi function) – the gamma function when offset to coincide with the factorial Rectangular function π ( n ) {\displaystyle \pi (n)\...
    622 bytes (107 words) - 19:28, 5 October 2024
  • rect ⁡ ( ⋅ ) {\displaystyle \operatorname {rect} (\cdot )} is the rectangular function, so the impulse response approaches h ( t ) = 1 T sinc ⁡ ( t T )...
    7 KB (1,266 words) - 22:48, 13 December 2023
  • Thumbnail for Nyquist–Shannon sampling theorem
    properties of the sinc function, as the Fourier pair relationship between the rect (the rectangular function) and sinc functions was well known by that...
    51 KB (6,838 words) - 02:04, 23 June 2025
  • Thumbnail for Wave function
    In quantum physics, a wave function (or wavefunction) is a mathematical description of the quantum state of an isolated quantum system. The most common...
    99 KB (13,584 words) - 18:24, 21 June 2025
  • c t ( ⋅ ) {\displaystyle \mathrm {rect} (\cdot )} is the rectangular function. The function r e c t ( t − T / 2 T ) {\displaystyle \mathrm {rect} \left({\frac...
    7 KB (998 words) - 18:25, 19 July 2024
  • Anti-aliasing filter, Spatial anti-aliasing Rectangular function Sampling (signal processing) Signal (electronics) Sinc function, Sinc filter Lanczos resampling...
    6 KB (785 words) - 20:38, 15 February 2025
  • Thumbnail for Pulse (signal processing)
    These can be found in pulse waves, square waves, boxcar functions, and rectangular functions. In digital signals the up and down transitions between high...
    4 KB (440 words) - 10:47, 5 May 2025
  • Thumbnail for Sine and cosine transforms
    functions into a sum of sine waves representing the odd component of the function plus cosine waves representing the even component of the function....
    19 KB (2,693 words) - 23:38, 17 June 2025
  • {\displaystyle \ast } [basis] × {\displaystyle \times } rectangular function, where the rectangular function has a value 1 inside the crystal and 0 outside it...
    42 KB (7,575 words) - 17:30, 25 May 2025
  • Thumbnail for Wigner distribution function
    x(t)={\begin{cases}1&|t|<1/2\\0&{\text{otherwise}}\end{cases}}\qquad } , the rectangular function ⇒ W x ( t , f ) = { 1 π f sin ⁡ ( 2 π f { 1 − 2 | t | } ) | t | <...
    18 KB (3,607 words) - 01:55, 19 January 2025
  • Thumbnail for Top-hat filter
    introducing a shift in the output function. Boxcar averager Rectangular function Step function Boxcar function Broughton, S. A.; Bryan, K. (2008). Discrete Fourier...
    2 KB (250 words) - 14:42, 5 May 2024
  • be the rectangular function; then α ≡ sinc ∈ PW {\displaystyle \alpha \equiv \operatorname {sinc} \in \operatorname {PW} } is the sinc function and both...
    128 KB (21,580 words) - 18:41, 21 June 2025