• mathematical subfields of numerical analysis and mathematical analysis, a trigonometric polynomial is a finite linear combination of functions sin(nx) and cos(nx)...
    6 KB (961 words) - 12:58, 23 April 2025
  • In mathematics, trigonometric interpolation is interpolation with trigonometric polynomials. Interpolation is the process of finding a function which...
    13 KB (2,490 words) - 08:17, 26 October 2023
  • Thumbnail for Sine and cosine
    _{n=1}^{N}b_{n}\sin(nx).} The trigonometric series can be defined similarly analogous to the trigonometric polynomial, its infinite inversion. Let A...
    55 KB (7,064 words) - 00:33, 30 May 2025
  • cos(nx) are expanded in terms of sin(x) and cos(x), a trigonometric polynomial becomes a polynomial in the two variables sin(x) and cos(x) (using the multiple-angle...
    60 KB (8,173 words) - 14:55, 27 May 2025
  • This is a list of polynomial topics, by Wikipedia page. See also trigonometric polynomial, list of algebraic geometry topics. Degree: The maximum exponents...
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  • Thumbnail for Chebyshev polynomials
    several equivalent ways, one of which starts with trigonometric functions: The Chebyshev polynomials of the first kind T n {\displaystyle T_{n}} are defined...
    58 KB (11,028 words) - 00:32, 20 June 2025
  • Thumbnail for Fourier series
    of a periodic function into a sum of trigonometric functions. The Fourier series is an example of a trigonometric series. By expressing a function as a...
    72 KB (11,152 words) - 11:43, 12 June 2025
  • Thumbnail for Trigonometric series
    \{B_{n}\}} are coefficients. It is an infinite version of a trigonometric polynomial. A trigonometric series is called the Fourier series of the integrable...
    6 KB (814 words) - 07:45, 29 December 2024
  • Thumbnail for Trigonometric tables
    mathematics, tables of trigonometric functions are useful in a number of areas. Before the existence of pocket calculators, trigonometric tables were essential...
    12 KB (1,648 words) - 04:57, 17 May 2025
  • Thumbnail for List of trigonometric identities
    In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for...
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  • seen as a form of polynomial interpolation with harmonic base functions, see trigonometric interpolation and trigonometric polynomial. Hermite interpolation...
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  • functions, these orthogonal functions may be assembled into a trigonometric polynomial to approximate a given function on the interval with its Fourier...
    6 KB (771 words) - 05:51, 24 December 2024
  • bounding the value of function's best approximation by algebraic or trigonometric polynomials in terms of the modulus of continuity or modulus of smoothness...
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  • Thumbnail for Exact trigonometric values
    The real part of any root of unity is a trigonometric number. By Niven's theorem, the only rational trigonometric numbers are 0, 1, −1, 1/2, and −1/2. An...
    22 KB (3,444 words) - 06:18, 3 April 2025
  • Thumbnail for Taylor series
    function with a finite number of terms, say with a Taylor polynomial or a partial sum of the trigonometric series, respectively. In the case of the Taylor series...
    48 KB (8,229 words) - 19:56, 6 May 2025
  • of polynomial equations (sometimes simply a polynomial system) is a set of simultaneous equations f1 = 0, ..., fh = 0 where the fi are polynomials in...
    33 KB (4,592 words) - 12:17, 9 April 2024
  • factorizations). With this initial motivation to consider types of trigonometric polynomial with independent frequencies, mathematical analysis was applied...
    16 KB (2,839 words) - 10:57, 31 March 2025
  • also exist for signomials, trigonometric polynomials, polynomial matrices, polynomials in free variables, quantum polynomials, and definable functions on...
    10 KB (1,413 words) - 19:56, 19 June 2025
  • logarithm, and trigonometric functions. However, the set of basic functions depends on the context. For example, if one adds polynomial roots to the basic...
    15 KB (1,764 words) - 02:05, 19 May 2025
  • Thumbnail for Interpolation
    functions using Padé approximant, and trigonometric interpolation is interpolation by trigonometric polynomials using Fourier series. Another possibility...
    23 KB (3,039 words) - 00:38, 20 June 2025
  • Thumbnail for Outline of trigonometry
    indicates how many times one number contains another Trigonometry Trigonometric functions Trigonometric identities Euler's formula Archimedes Aristarchus...
    9 KB (706 words) - 12:17, 30 October 2023
  • Thumbnail for Bandlimiting
    of trigonometric functions, and since f(t) is time-limited, this sum will be finite, so F 2 {\displaystyle F_{2}} will be actually a trigonometric polynomial...
    8 KB (1,191 words) - 15:07, 14 June 2025
  • Thumbnail for Trigonometric functions
    trigonometric functions has a corresponding inverse function, and an analog among the hyperbolic functions. The oldest definitions of trigonometric functions...
    77 KB (10,740 words) - 23:12, 14 June 2025
  • Thumbnail for Legendre polynomials
    mathematics, Legendre polynomials, named after Adrien-Marie Legendre (1782), are a system of complete and orthogonal polynomials with a wide number of...
    38 KB (7,177 words) - 13:10, 18 June 2025
  • to a polynomial or spline See also: List of numerical computational geometry topics Trigonometric interpolation — interpolation by trigonometric polynomials...
    70 KB (8,327 words) - 09:12, 7 June 2025
  • classical trigonometry. He also points out that, to a student with a scientific calculator, formulas that avoid square roots and trigonometric functions...
    12 KB (1,430 words) - 07:40, 18 February 2025
  • Thumbnail for Difference engine
    navigation are built from logarithmic and trigonometric functions, which can be approximated by polynomials, so a difference engine can compute many useful...
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  • Thumbnail for J. Ernest Wilkins Jr.
    1992; "Mean Number of Real Zeroes of a Random Trigonometric Polynomial. II," in Topics in Polynomials of One or Several Variables and Their Applications...
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  • mathematics, an exponential sum may be a finite Fourier series (i.e. a trigonometric polynomial), or other finite sum formed using the exponential function, usually...
    8 KB (1,212 words) - 21:42, 4 April 2025
  • an algebraic equation or polynomial equation is an equation of the form P = 0 {\displaystyle P=0} , where P is a polynomial with coefficients in some...
    14 KB (2,162 words) - 17:51, 14 May 2025