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pre-frac operations

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  • Polynôme formel — En algèbre, le terme de polynôme formel, ou simplement polynôme, est le nom générique donné aux éléments d une structure construite à partir d un ensemble de nombres. On considère un ensemble A de nombres, qui peut être celui des entiers ou des… …   Wikipédia en Français

  • Discrete cosine transform — A discrete cosine transform (DCT) expresses a sequence of finitely many data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy… …   Wikipedia

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