On 1/29/2012 12:48 PM, Jerry Avins wrote:

> How many cheeses are there? Combinatorics tells us that the number of
> combinations one can make by choosing k objects from a pool of n
> (ignoring order and disallowing repetitions) is
>
> n!
> --------
> k!(n-k)!
>
> where '!' indicates factorial. So with 10 cheeses to choose from,
> there are 210 four-cheese combinations. The number goes up fast.

You're making my math head hurt.