S savage New member Joined Nov 13, 2010 Messages 0 Reaction score 0 Nov 13, 2010 #1 Difference between nPr and nCr and when to use which
N notic4lyf New member Joined Oct 21, 2010 Messages 0 Reaction score 0 Nov 13, 2010 #2 You use nPr for permutations when order matters (i.e. when order is ranked) You use nCr for combinations when order does not matter
You use nPr for permutations when order matters (i.e. when order is ranked) You use nCr for combinations when order does not matter