单词	Cauchy sequence
释义	Cauchy sequence noun Cau·​chy sequence kō-ˈshē-  ˈkō-shē- : a sequence of elements in a metric space such that for any positive number no matter how small there exists a term in the sequence for which the distance between any two terms beyond this term is less than the arbitrarily small number Word History Etymology Augustin-Louis Cauchy †1857 French mathematician First Known Use circa 1949, in the meaning defined above
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