Permutations and Combinations
In mathematics, the notion of permutation relates to the act of permuting (rearranging) objects or values.
Question 1: How many ways can you re-arrange the following bunch of numbers? (1,2,3)?
- Process 1:
- (1,2,3)
- (1,3,2),
- (2,1,3),
- (2,3,1),
- (3,1,2), and
- (3,2,1).
- Answer1: 6 ways.
This is where the concept of factorials comes in: (Continue adapting information found at w:permutation here)