permutations

permutations

This function returns the number of possible permutations

Syntax:

permutations(n,x)

Argument	Description
int n	The number of possible numbers
int x	Length of row

Returns: int

Description:

A permutation is a number of possible arranging objects in a row. Number n represents the number of objects, and number x is a length of the row.

Example :

int value = pemutations(3,3);

So, when we have numbers 1, 2 and 3 (n = 3) we can assemble them in row (x = 3) - six different ways: (1,2,3), (1,3,2), (2,1,3), (2,3,1), (3,1,2), and (3,2,1). So the output ofthis function is 6.

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