mathematics, the Fourier sine and cosine transforms are integral equations that decompose arbitrary functions into a sum of sine waves representing the...
19 KB (2,693 words) - 23:38, 17 June 2025
In mathematics, sine and cosine are trigonometric functions of an angle. The sine and cosine of an acute angle are defined in the context of a right triangle:...
55 KB (7,064 words) - 00:33, 30 May 2025
"Symmetric convolution and the discrete sine and cosine transforms," IEEE Trans. Signal Process. SP-42, 1038–1051 (1994). Matteo Frigo and Steven G. Johnson:...
14 KB (2,049 words) - 19:34, 25 May 2025
respective sine and cosine transforms can be added to express the function. The Fourier transform can be expressed as the cosine transform minus -1 {\displaystyle...
7 KB (1,001 words) - 15:55, 27 May 2025
transforms are the discrete sine transform (DST), which is equivalent to a DFT of real and odd functions, and the modified discrete cosine transform (MDCT)...
101 KB (11,972 words) - 20:04, 27 June 2025
discrete cosine and sine transforms. H. S. Malvar, "Lapped Transforms for Efficient Transform/Subband Coding", IEEE Trans. on Acoustics, Speech, and Signal...
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Fourier introduced sine and cosine transforms (which correspond to the imaginary and real components of the modern Fourier transform) in his study of heat...
177 KB (21,313 words) - 02:31, 2 June 2025
/4)={\sqrt {2}}\cos(t-\pi /4)\,,} is the cosine-and-sine (cas) or Hartley kernel. In engineering terms, this transform takes a signal (function) from the time-domain...
10 KB (1,340 words) - 00:07, 18 June 2025
Fourier series (redirect from Fourier sine series)
example of a trigonometric series. By expressing a function as a sum of sines and cosines, many problems involving the function become easier to analyze because...
72 KB (11,152 words) - 11:43, 12 June 2025
wave, a mathematical function Sine and cosine transforms Sine quadrant Sine-Gordon equation Sinë, village in Albania Sine, Washington, a community in the...
1 KB (171 words) - 05:54, 7 November 2024
list of transforms in mathematics. Abel transform Aboodh transform Bateman transform Fourier transform Short-time Fourier transform Gabor transform Hankel...
3 KB (266 words) - 20:08, 15 June 2025
and cos and sin are the trigonometric functions cosine and sine respectively. This complex exponential function is sometimes denoted cis x ("cosine plus...
27 KB (3,950 words) - 08:13, 13 June 2025
sine wave of arbitrary phase can be written as the linear combination of two sine waves with phases of zero and a quarter cycle, the sine and cosine components...
10 KB (1,332 words) - 22:13, 6 March 2025
List of Fourier analysis topics (redirect from Fourier series and transforms)
Fourier transform Fourier operator Fourier inversion theorem Sine and cosine transforms Parseval's theorem Paley–Wiener theorem Projection-slice theorem...
3 KB (224 words) - 19:08, 14 September 2024
Fourier's sine and cosine transforms also perform even–odd decomposition by representing a function's odd part with sine waves (an odd function) and the function's...
17 KB (2,682 words) - 23:03, 5 May 2025
context of a family of discrete cosine transforms, or as DCT-II. More recent standards have used integer-based transforms that have similar properties to...
21 KB (1,529 words) - 22:35, 23 May 2025
Window function (redirect from Triple overlapped cosine window)
of its similarity to a raised-cosine distribution. This function is a member of both the cosine-sum and power-of-sine families. Unlike the Hamming window...
74 KB (8,875 words) - 04:15, 25 June 2025
interval, [−1,+1], and maps them to two normally distributed samples without the use of sine or cosine functions. The Box–Muller transform was developed as...
15 KB (2,086 words) - 15:21, 7 June 2025
1145/317275.317284. Knockaert, Luc (2000). "Fast Hankel transform by fast sine and cosine transforms: the Mellin connection". IEEE Trans. Signal Process....
26 KB (4,204 words) - 21:10, 3 February 2025
trigonometry, the law of cosines (also known as the cosine formula or cosine rule) relates the lengths of the sides of a triangle to the cosine of one of its angles...
38 KB (5,891 words) - 16:21, 8 June 2025
Inverse trigonometric functions (redirect from Arc Cosine)
Specifically, they are the inverses of the sine, cosine, tangent, cotangent, secant, and cosecant functions, and are used to obtain an angle from any of...
75 KB (10,633 words) - 14:30, 26 June 2025
DFT matrix (redirect from Discrete Fourier transform matrix)
so-called integral transforms. In this case, if we make a very large matrix with complex exponentials in the rows (i.e., cosine real parts and sine imaginary parts)...
11 KB (2,115 words) - 21:03, 14 April 2025
across the frequency domain of a Fourier transform. Since sine and cosine transforms are related transforms a modified version of the convolution theorem...
4 KB (493 words) - 05:44, 31 January 2023
Trigonometric tables (redirect from Sine table)
not sine and cosine, but sine and versine. A quick, but inaccurate, algorithm for calculating a table of N approximations sn for sin(2πn/N) and cn for...
12 KB (1,648 words) - 04:57, 17 May 2025
overlap–add and overlap–save methods), fast algorithms for discrete cosine or sine transforms (e.g. fast DCT used for JPEG and MPEG/MP3 encoding and decoding)...
67 KB (7,809 words) - 20:02, 27 June 2025
Trigonometry (section Law of cosines)
represented as an integral of sines and cosines through the Fourier transform. This has applications to quantum mechanics and communications, among other...
50 KB (4,962 words) - 01:45, 5 June 2025
Clausen function (redirect from Log Cosine Function)
{x}{2}}\right|\,dx:} In the range 0 < φ < 2 π {\displaystyle 0<\varphi <2\pi \,} the sine function inside the absolute value sign remains strictly positive, so the...
31 KB (6,482 words) - 03:37, 7 March 2025
frequency). The sines and cosines in the Fourier series are an example of an orthonormal basis. As an example of an application of integral transforms, consider...
13 KB (1,278 words) - 17:01, 18 November 2024
A sine function is created by computing the Discrete Hilbert transform of a cosine function, which was processed in four overlapping segments, and pieced...
60 KB (8,169 words) - 19:09, 23 June 2025
Sinc function (redirect from Cardinal sine)
non-zero integers. The local maxima and minima of the unnormalized sinc correspond to its intersections with the cosine function. That is, sin(ξ)/ξ = cos(ξ)...
22 KB (3,250 words) - 02:20, 19 June 2025