It's also quite useful, especially when it comes to probability and calculations in the domain of combinatorics.

它还很有用，尤其是在组合学中的概率计算中。

We can use a field of mathematics known as combinatorics, which deals with the likelihoods of different combinations.

我们可以使用称为组合学的数学领域，它处理不同组合的可能性。

In combinatoric terms, this problem would be phrased as twelve choose five, and could be calculated with this formula, or you could just look at the sixth element of row twelve on the triangle and get your answer.

从组合学上看，这个问题可以看成是从12中挑5，并可以用这个公式计算，或者你可以找到这个三角形的第十二行第六项，就是你要的答案。