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函数是中学数学的核心内容,是高等数学的基础,必然也是高考的重要考查内容。分段函数(凡是把函数的定义域分成几个区间,在各个区间内,函数的解析式不一样的函数称为分段函数)在高中数学教材中所占比重不大,所以很多学生对分段函数的认识比较肤浅。但近几年在高考中又频繁考查。本文对近几年高考考查分段函数的有关问题,做一归纳和例释。
Function is the core content of high school mathematics, is the basis of advanced mathematics, is also an important test of the college entrance examination content. Segmentation functions (usually the function of the domain is divided into several intervals, in different intervals, the function of the analytical function is not the same as the piecewise function) in high school mathematics textbooks share is small, so many students on the points Section function of understanding more superficial. However, in recent years, the college entrance examination and frequently test. This article on the college entrance examination in recent years to examine the segmentation function of the relevant issues, to do a induction and interpretation.