Описание тега combinations

A combination is a selection of objects from a larger collection in no particular order. More formally, calculating a combination is based on the number of ways of picking k unordered outcomes from n possibilities. Calculating the number of k combinations is known as the binomial coefficient.

An important difference between combinations and permutations is in combinations, the order of the selection does not matter.

For example, given three fruit, say an apple, orange and pear, there are three combinations of two that can be drawn from this set: an apple and a pear; an apple and an orange; or a pear and an orange.