In this paper,the Riemann integrable functions are described by a.e.continuous functions.Some properties of Riemann integrable functions are reproved.It is very convenient to describe the Riemann integrable functions by a.e.continuous functions in many cases.
关键词
a.e.连续/黎曼可积函数/可测集
Key words
a.e.continuous/riemann integrable function/measurable set