This lesson covers how to define and use factorials to determine the number of permutations or arrangements of objects.
Learn to recognize permutations in situations where order is important.
This video demonstrates a sample use of permutations.
This video provides an explanation of the concept of permutations.
Find out why you can increase the security of your password by making it more complex.
Discover how Germany used permutations to send encrypted messages during World War II and how the code was eventually cracked.