When the order doesn't matter, it is a Combination. When the order does matter it is a Permutation. So, we should really call this a "Permutation Lock"! In other words: A Permutation is an ordered …

Permutations are used in almost every branch of mathematics and in many other fields of science. In computer science, they are used for analyzing sorting algorithms; in quantum physics, for describing …

Jan 23, 2026 · Permutations and combinations, the various ways in which objects from a set may be selected, generally without replacement, to form subsets. This selection of subsets is called a …

Oct 15, 2025 · In Mathematics, a Permutation is defined as a mathematical concept that determines the number of possible arrangements for a specific set of elements. Therefore, it plays a big role in …

Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set.

Permutations can be used to compute complex probability problems. For example, we can use permutations to determine the probability that a 6 digit personal identification number (PIN) has no …

Aug 16, 2025 · In this section, we introduce the factorial notation and discuss permutations and combinations and their applications.