Math 2.0

Combinatorics Concept

Combinations with repetition

Summary

A combination with repetition is a selection of kk elements from a set in which the order does not matter and elements can repeat. Such selections are multisets of size kk, and stars and bars counts them. The node combinations with repetition gives the precise definition.

Further reading

  1. Web https://en.wikipedia.org/wiki/Multiset, Counting multisets
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