Permutations without repetition |

Returns number of permutations without repetition.

Permutations(number_objects)

positive integer number >= 1

- given number is converted into integer number

- formula for of function: n!

Permutations(5) = 120

There are 5 balls in a box: 1, 2, 3, 4, 5.

How much different numbers we can assemble using all bals?

Permutations(5) = 120

We can assemble 120 different numbers.