The values of a trigonometrical polynomial at well spaced points
نویسندگان
چکیده
منابع مشابه
Two Results on Polynomial Interpolation in Equally Spaced Points
We present two results that quantify the poor behavior of polynomial interpolation in n equally spaced points. First, in band-limited interpolation of complex exponential functions e‘li (c( E Iw), the error decreases to 0 as n + a, if and only if d( is small enough to provide at least six points per wavelength. Second, the Lebesgue constant ,4. (supremum norm of the nth interpolation operator) ...
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ژورنال
عنوان ژورنال: Mathematika
سال: 1966
ISSN: 0025-5793,2041-7942
DOI: 10.1112/s0025579300004277