关于周期函数定义的讨论

ON THE DEFINITION OF PERIODIC FUNCTION

本文就目前关于周期函数的三种定义进行了详尽地讨论，指出了三种定义间的关系及各定义下周期函数性质的不同和可能引起的混淆，并提出了是否需要引入新的周期函数定义的问题。

This paper discusses the three kinds of definitions of periodic function and the different properties with respet to the each definition,The author thinks that it is nesessary that a new definition of periodic function should be introduced