flâneur

Stirling numbers of the second kind

en.wikipedia.org · 5,337 words · saved by 1 readers

In mathematics, particularly in combinatorics, a Stirling number of the second kind (or Stirling partition number) is the number of ways to partition a set of n objects into k non-empty subsets and is denoted by

Stirling numbers of the second kind - Wikipedia Jump to content From Wikipedia, the free encyclopedia Numbers parameterizing ways to partition a set The 15 partitions of a 4-element set ordered in a Hasse diagram There are S (4,1), ..., S (4, 4) = 1, 7, 6, 1 partitions containing 1, 2, 3, 4 sets. In mathematics , particularly in combinatorics , a Stirling number of the second kind (or Stirling partition number ) is the number of ways to partition a set of n objects into k non-empty subsets and is denoted by S ( n , k ) {\displaystyle S(n,k)} or { n k } {\displaystyle \textstyle \left\{{n \atop

saved by

related reading