从函数的图像、单调性、周期性、零点以及不动点等五个方面理解函数思想在解决数列问题中的应用,不仅可以加深我们对函数思想的理解,也可以使我们认识到函数不仅可以连续的变化,也能离散变化.从函数的观点出发动态地、直观地研究数列的一系列问题,帮助我们对函数和数列内在联系有更深入的认识.在解决很多较难数列问题上如果从函数的角度出发,利 Understanding the application of function thought in solving the sequence of problems from five aspects of function image, monotonicity, periodicity, zero point and fixed point can not only deepen our understanding of the function idea, but also make us realize that the function not only can Continuous changes, but also discrete changes.From the function point of view dynamic and intuitive study of a series of series of questions, to help us to the function and sequence of internal relations have a more in-depth understanding.In many difficult to solve the problem of serial number from Function point of departure, Lee