combination
RU: комбинация
A selection of k items from a set of n items where order does not matter. {A, B} and {B, A} are the same combination. The count is C(n, k) = n! / (k!(n-k)!), the binomial coefficient.
RU: комбинация
A selection of k items from a set of n items where order does not matter. {A, B} and {B, A} are the same combination. The count is C(n, k) = n! / (k!(n-k)!), the binomial coefficient.