According to Wikipedia,

In mathematics, the notion of **permutation** relates to the act of **arranging** all the members of a set into some sequence or order, or if the set is already ordered, **rearranging** (reordering) its elements, a process called **permuting**.

In mathematics, a **combination** is a selection of items from a collection, such that (unlike permutations) the order of selection does not matter.

Getting answers and workings (steps) for permutation and combination problems in Nickzom Calculator – The Calculator Encyclopedia is very simple and I would very much love to show you how you can do this easily.

You can access **Nickzom Calculator** (The Calculator Encyclopedia) via any of these channels:

Web – https://www.nickzom.org/calculator-plus

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

First and Foremost, proceed to the **Calculator Map, **under the Mathematics section click on **Permutation|Combination.**

Let’s begin with solving a problem on **Permutation**. I hope by now you do know the value of **n** and **r**