Permutations

Permutations(k, n)

The number of possible permutations of «k» items taken from a bucket of «n» items.

Library

Advanced math

Example

Permutations(2, 4) → 12

They are: {1, 2}, {1, 3}, {1, 4}, {2, 1}, {2, 3}, {2, 4}, {3, 1}, {3, 2}, {3, 4}, {4, 1}, {4, 2}, {4, 3}

See Also

• Combinations
• Factorial
• Partitions