高中数学教材(人教版,必修)的数列的通项公式的概念是“数列{an}的第n项an与项数n之间的关系可以用一个公式来表示,这个公式就叫做这个数列的通项公式”.有时又可以理解为第n项an关于正整数n的“函数”,即an=f(n)(n∈N*).这说明了数列与函数的关系;利用这个关系,我们可以从函数 The concept of the general term of the series of mathematical textbooks for senior high school (PEP, compulsory) is that the relationship between the nth term of a series {an} and the number n can be expressed by a formula. This formula is called this series. The general term formula of “” can sometimes be understood as the “function” of the nth term for a positive integer n, ie an = f (n) (n ∈ N *). This shows the relationship between the series and the function; use this relationship We can from functions