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单词 multinomial theorem
释义
multinomial theorem

Mathematics
  • A generalization of the binomial theorem, giving the expansions of positive integral powers of a multinomial expression (x1+x2++xk)n=(n!n1!n2!nk!x1n1x2n2xknk) where the sum is over all k-tuples n1, n2,…, nk of non-negative integers which total n.


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