what is permutation

Asked by Chandranath Jha | 5th Oct, 2011, 12:00: AM

Expert Answer:

Permutation means arrangement of things.The word arrangement is used if the order of things is considered.
Informally, a permutation of a set of objects is an arrangement of those objects into a particular order.
The number of permutation of n distinct objects is n x (n-1)x.....x2x1,which number is called n factorial(denoted as n!).

Answered by  | 5th Oct, 2011, 10:38: PM

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