Permutation | more ... |
 All possible arrangements of a collection of things, where the order is important. Example: You want to visit the homes of three friends Alex ("a"), Betty ("b") and Chandra ("c"), but haven't decided in what order. What choices do you have? Answer: {a,b,c} {a,c,b} {b,a,c} {b,c,a} {c,a,b} {c,b,a} If the order does not matter, it is a Combination See: Combination | |