Bell number

English

Named after Eric Temple Bell, who wrote about them in the 1930s.

Bell number (plural Bell numbers)

(combinatorics) Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number B_n is the number of different ways to partition a set that has exactly n elements.

单词	Bell number
释义	Bell number English Etymology Named after Eric Temple Bell, who wrote about them in the 1930s. Noun Bell number (plural Bell numbers) (combinatorics) Any member of a sequence of numbers that count the possible partitions of a set, such that the nth number B_n is the number of different ways to partition a set that has exactly n elements.
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