Ernest Scheiber
Abstract
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There is presented an approach to find an approximation polynomial of a function with two variables based on the two dimensional discrete Fourier transform. The approximation polynomial is expressed through Chebyshev polynomials. There is given an uniform convergence result.
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There is presented an approach to find an approximation polynomial of a function with two variables based on the two dimensional discrete Fourier transform. The approximation polynomial is expressed through Chebyshev polynomials. There is given an uniform convergence result.
Key concepts: Chebyshev polynomials, Chebyshev nodes, Equioscillation theorem, Chebyshev equation, Mathematics, Polynomial, Chebyshev filter, Approximation theory