I searched Google under the key words "permutations" to get these possible sources:
http://en.wikipedia.org/wiki/Permutation
(Broken Link Removed)
http://mathforum.org/dr.math/faq/faq.comb.perm.html
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
Evaluate the permutation.
P(5, 5)
a. 1 b. 120 c. 0 d. 4
1 answer