الخلاصة

The research is discuss the chaotic function of the discrete and semi- discrete flow, which is defined as the frequency of functions, also shows the relationship of chaotic functions to the periodic points of both the expelling and the attractive, on the one hand, and some dynamic characteristics on the other hand .so we study in this paper chaotic function through the function of the tent and the function of the baker as the research included many examples and relevant evidence .