Manuals/calci/PERMUT

PERMUT(Number,NumberChosen)

Description

This function gives the number of Permutations for a given number of objects.
A permutation, also called an "arrangement number" or "order", is a rearrangement of the elements of an ordered list.
A selection of objects in which the order of the objects matters.
A Permutation is an Ordered Combination.
In $PERMUT(Number,NumberChosen)$ , $Number$ is an integer which is indicating the number of objects and $NumberChosen$ is an integer which is indicating the number of objects in each permutation.
For $Number$ and $NumberChosen$ , when we give in decimals, it will change into integers.
The formula for the number of permutation is: $_{n}P_{k}={\frac {n!}{(n-k)!}}$
The Permutation is denoted by $_{n}P_{k}$ , $P_{n,k}$ , or $P(n,k)$ .This function will give the result as error when

1. $Number$  and  $NumberChosen$  are non-numeric.
2.Suppose  $Number\leq 0$   or   $NumberChosen<0$  or  $Number<NumberChosen$ .

=PERMUT(14,2) = 182
=PERMUT(50,5) = 254251200
=PERMUT(10.2,3) = 720
=PERMUT(4,0) = 1
=PERMUT(6,1) = 6