The two previous posts showed how to tell the difference between permutations and combinations and how to work with factorials. Now you’re ready to do some calculations! Continue Reading →
The two previous posts showed how to tell the difference between permutations and combinations and how to work with factorials. Now you’re ready to do some calculations! Continue Reading →
Have you ever been told that “In permutations, order matters”? There are lots of permutation problems where there’s no ordering whatsoever. So how can you tell?!? Here’s how. Continue Reading →
You may have seen n! – and I don’t mean to scream the 14th letter of the alphabet at you. So what the heck are factorials and why do you ever need to learn them? (Guess what – the answer is in this post!) Continue Reading →