Permutation Calculator (nPr)
Understanding Permutations (nPr)
A permutation is an arrangement of items in a specific order. It calculates the number of ways to choose and arrange 'r' items from a set of 'n' items, where the order of selection matters.
Formula
The number of permutations is calculated as:
\[ P(n, r) = \frac{n!}{(n-r)!} \]
Where 'n' is the total number of items, and 'r' is the number of items to arrange.
Calculate the number of ordered arrangements.
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