- arithmetic transform
- арифметическое преобразование
Англо-русский словарь по компьютерной безопасности. Академик.ру. 2011.
arithmetic transform
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Arithmetic complexity of the discrete Fourier transform — See Fast Fourier transform#Bounds on complexity and operation counts for a general summary of this issue.Bounds on the multiplicative complexity of FFTIn his PhD thesis in 1987 [1] , Michael Heidman focus on the arithmetic theory of complexity… … Wikipedia
Transform (mathematics) — In mathematics a transform is an operator applied to a function so that under the transform certain operations are simplified. For example, in arithmetic when finding the logarithm of numbers, the process of finding the logarithm of the product… … Wikipedia
Discrete cosine transform — A discrete cosine transform (DCT) expresses a sequence of finitely many data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy… … Wikipedia
Fast Fourier transform — A fast Fourier transform (FFT) is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse. There are many distinct FFT algorithms involving a wide range of mathematics, from simple complex number arithmetic to group … Wikipedia
Discrete Hartley transform — A discrete Hartley transform (DHT) is a Fourier related transform of discrete, periodic data similar to the discrete Fourier transform (DFT), with analogous applications in signal processing and related fields. Its main distinction from the DFT… … Wikipedia
Number-theoretic transform — The number theoretic transform (NTT) is similar to the discrete Fourier transform, but operates with modular arithmetic on integers instead of complex numbers.DefinitionThe discrete Fourier transform is given by:f j=sum {k=0}^{n 1}x kleft(e^{… … Wikipedia
Discrete Fourier transform — Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms In mathematics, the discrete Fourier transform (DFT) is a specific kind of discrete transform, used in… … Wikipedia
Discrete Fourier transform (general) — See also: Fourier transform on finite groups This article is about the discrete Fourier transform (DFT) over any field (including finite fields), commonly called a number theoretic transform (NTT) in the case of finite fields. For specific… … Wikipedia
Modified discrete cosine transform — The modified discrete cosine transform (MDCT) is a Fourier related transform based on the type IV discrete cosine transform (DCT IV), with the additional property of being lapped: it is designed to be performed on consecutive blocks of a larger… … Wikipedia
Discrete sine transform — In mathematics, the discrete sine transform (DST) is a Fourier related transform similar to the discrete Fourier transform (DFT), but using a purely real matrix. It is equivalent to the imaginary parts of a DFT of roughly twice the length,… … Wikipedia
Discrete weighted transform — In mathematics, the discrete weighted transform (DWT) is a variation on the discrete Fourier transform over arbitrary fields involving weighting the input before transforming it.[1] References ^ Crandall, Richard; Fagin, Barry (1994), Discrete… … Wikipedia
