Question

meaning of permutations? no spammers please.​

Answer 1

each of several possible ways in which a set or number of things can be ordered or arranged.

Answer 2

In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. The word "permutation" also refers to the act or process of changing the linear order of an ordered set..