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The Trigonometric Polynomial Like Bernstein Polynomial [PDF]

open access: yesThe Scientific World Journal, 2014
A symmetric basis of trigonometric polynomial space is presented. Based on the basis, symmetric trigonometric polynomial approximants like Bernstein polynomials are constructed.
Xuli Han
doaj   +7 more sources

Trigonometric Polynomial Solutions of Bernoulli Trigonometric Polynomial Differential Equations

open access: yesMathematics, 2022
We consider real trigonometric polynomial Bernoulli equations of the form A(θ)y′=B1(θ)+Bn(θ)yn where n≥2, with A,B1,Bn being trigonometric polynomials of degree at most μ≥1 in variables θ and Bn(θ)≢0.
Claudia Valls
exaly   +5 more sources

The natural algorithmic approach of mixed trigonometric-polynomial problems [PDF]

open access: yesJournal of Inequalities and Applications, 2017
The aim of this paper is to present a new algorithm for proving mixed trigonometric-polynomial inequalities of the form ∑ i = 1 n α i x p i cos q i x sin r i x > 0 $$\sum_{i=1}^{n}\alpha _{i}x^{p_{i}} \cos ^{q_{i}} x\sin ^{r_{i}} x>0 $$ by reducing them ...
Cristinel Mortici, Branko Malesevic
exaly   +4 more sources

Polynomial-Exponential Bounds for Some Trigonometric and Hyperbolic Functions

open access: yesAxioms, 2021
Recent advances in mathematical inequalities suggest that bounds of polynomial-exponential-type are appropriate for evaluating key trigonometric functions.
Marko Kostic   +2 more
exaly   +3 more sources

When Is a Trigonometric Polynomial Not a Trigonometric Polynomial? [PDF]

open access: yesThe American Mathematical Monthly, 2012
3 ...
Joseph E. Borzellino, Morgan Sherman
openaire   +3 more sources

Deterministic and random approximation by the combination of algebraic polynomials and trigonometric polynomials

open access: yesOpen Mathematics, 2021
Fourier approximation plays a key role in qualitative theory of deterministic and random differential equations. In this paper, we will develop a new approximation tool.
Zhang Zhihua
doaj   +1 more source

Algorithms for trigonometric polynomials [PDF]

open access: yesProceedings of the 2001 international symposium on Symbolic and algebraic computation, 2001
In this paper we present algorithms for simplifying ratios of trigonometric polynomials and algorithms for dividing, factoring and computing greatest common divisors of trigonometric polynomials, that is, polynomials in sin(x) and cos(x).
Jamie Mulholland, Michael B. Monagan
openaire   +1 more source

Proposing a New Theorem to Determine If an Algebraic Polynomial Is Nonnegative in an Interval

open access: yesMathematics, 2021
We face the problem to determine whether an algebraic polynomial is nonnegative in an interval the Yau Number Theoretic Conjecture and Yau Geometric Conjecture is proved.
Ke-Pao Lin   +3 more
doaj   +1 more source

High Performance Implementation and Optimization of Trigonometric Functions Based on SIMD [PDF]

open access: yesJisuanji kexue, 2021
As a basic mathematical operation,the high-performance implementation of trigonometric functions is of great significance to the construction of the basic software ecology of the processor.Especially,the current processors have adopted the SIMD ...
YAO Jian-yu, ZHANG Yi-wei, ZHANG Guang-ting, JIA Hai-peng
doaj   +1 more source

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