Combination

From Free net encyclopedia

Image:Mergefrom.gif It has been suggested that Permutations and combinations be merged into this article or section. ([[{{{2|: talk:Combination}}}|Discuss]])

For other senses of this term, see combination (disambiguation).

In combinatorial mathematics, a combination is an un-ordered collection of unique elements. Given S, the set of all possible unique elements, a combination is a subset of the elements of S. The order of the elements in a combination is not important (two lists with the same elements in different orders are considered to be the same combination). Also, the elements cannot be repeated in a combination (every element appears uniquely once). A k-combination (or k-subset) is a subset with k elements. The number of k-combinations (each of size k) from a set S with n elements (size n) is the binomial coefficient.

[edit]

Combination

From Free net encyclopedia

See also

Views

Personal tools

Search

Partner sites