FutureLearn uses cookies to enhance your experience of the website. All but strictly necessary cookies are currently disabled for this browser. Turn on JavaScript to exercise your cookie preferences for all non-essential cookies. You can read FutureLearn's Cookie policy here.

Learn more about this course.

Derangements

Derangements

Imagine you distribute 10 Books numbered from 1 to 10 to Students 1,2,…,10. How many ways are there to redistribute the books in such a way that nobody receives the book he had before? Translated into mathematical terms, how many are the derangements of the sequence ((1,2,…,10))?

You can access the content of the video in the PDF file at the bottom of this step.

Want to keep learning?

This content is taken from University of Padova online course

Combinatorics: Strategies and Methods for Counting

See other articles from this course

This article is from the free online

Combinatorics: Strategies and Methods for Counting

Created by

Join Now

Reach your personal and professional goals

Unlock access to hundreds of expert online courses and degrees from top universities and educators to gain accredited qualifications and professional CV-building certificates.

Join over 18 million learners to launch, switch or build upon your career, all at your own pace, across a wide range of topic areas.

Start Learning now