N is the total number of elements in the set. Enter the total number of objects n and number of elements taken at a time r 3. A permutation of some number of objects means the collection of all possible arrangements of those objects.
To calculate combinations we will use the formula n C r n.
4 x 3 x 2 x 1 24. For an in-depth explanation please visit Combinations and Permutations. You are essentially reducing the. Set Array Joined CSV.