Permutation: Difference between revisions

Content deleted Content added
k-permutations of n: don't use ordinary power notation for falling factorial power, use an underline to distinguish
Line 114:
:<math>\frac{11!}{1!4!4!2!}</math>.
 
A '''k-permutation''' of a multiset ''M'' is a sequence of length ''k'' of elements of ''M'' in which each element appears ''at most'' its multiplicity in ''M'' times (an element's ''repetition number''). InfiniteIf repetitionno numbersbound areat allowedall inis someplaced applicationson the number of times that elements can be repeated, one obtains the notion of a [[word (mathematics)|word]] over a given alphabet.
 
==Permutations in group theory==