Math 2.0

Combinatorics Concept

Number of derangements

Summary

The derangement numbers DnD_n count the permutations of nn elements with no fixed point. They grow like n!/en!/e. The node number of derangements gives the precise definition.

Further reading

  1. Web https://en.wikipedia.org/wiki/Derangement, Counting derangements
About this page
Tag05WR29H2KH
URIm2://05WR29H2KH
Kindconcept
WritingW0 stub
MSC05A05

Markdown · JSON · Edit on GitHub

What this page needs for W1

  • an inventory row: the row of the inventory that the node accounts for (0 of 1)

The writing levels say how complete the text of a page is. They do not measure its truth.

What links here

Definitions