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# Approximation Theory and Method ch7 ... as the sign of $p(x)$. It follows that $p^{*}$ is a best minimax approximation from $\mathscr{A}$ to $f$ if 阅读全文
posted @ 2023-04-21 15:40
miyasaka
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# Approximation Theory and Method part 3 ### Basic properties of divided differences Let $\left\{x_i ; i=0,1, \ldots, n\right\}$ be any $(n+1)$ distin 阅读全文
posted @ 2023-04-21 14:36
miyasaka
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# Counting | Type | Repetition Allowed? | Formula | | : | : : | : : | | r-permutations | No | $P_n^k =r! { n \choose k } $ | | r-combinations | No | $ 阅读全文
posted @ 2023-04-21 13:53
miyasaka
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