刚刚学数列时,我觉得它既难学又没用,就是把数字顺过来,倒过去的。但是后来我发现不仅是数学,物理、化学中的许多应用问题不用数列还的确很难解,数列呀！不仅有用,而且用处还真妙。下面用我平时做题时碰到的三个经典题目谈谈数列在实际问题中的应用。 When I first learned about numbers, I thought it was both difficult to learn and useless. But then I discovered that not only mathematics, physics, chemistry, many application problems do not need to series it is indeed difficult to solve, the number of columns! Not only useful, but also useful. Now I will talk about the application of numbers in practical problems with the three classic topics that I encountered when I usually do the questions.