trigonometric polynomial


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trigonometric polynomial

[¦trig·ə·nə¦me·trik ‚päl·i′nō·mē·əl]
(mathematics)
A finite series of functions of the form an cos nx + bn sin nx ; occasionally used synonymously with trigonometric series.
References in periodicals archive ?
Let us consider the 2[pi]-periodic trigonometric polynomial operator (or summability operator)
n] denotes the best approximating trigonometric polynomial for f.
For instance, Han presented the quadratic [6] and cubic [7] trigonometric polynomial curves with a shape parameter.
The Get_JN function finds the trigonometric polynomial of order N for the function f.
which is just the trigonometric polynomial in Weierstrass's first approximation theorem.
In the case of f being a trigonometric polynomial, the resulting Toeplitz matrices are band matrices for n large enough.
n,[OMEGA]f is an [OMEGA]-bandlimited trigonometric polynomial of period 2[L.
1 we report the maximal and average relative errors of the product Gaussian formula with respect to the reference values of I(w, n) obtained by applying to the trigonometric polynomial [(cos([theta])+sin([theta])+2).
It has previously been shown that a trigonometric polynomial having at most M non-vanishing coefficients can be recovered from N = O (M log(D)) random samples by the greedy methods thresholding and orthogonal matching pursuit with high probability.