摘要
通过对分段函数在分段点性态的讨论,指出了分段函数在帮助学生理解高等数学一些基本概念的作用。给出了在一定条件下,用导函数在该点的极限判定该点导数是否存在的方法。
Through diseussing of the properties and state of the piecewise function at the piecewise point, we figure out the usage of the piecewise function on helping student to understand some basic concerns in higher mathematics. We propose a method to judge if the derivative at the piecewise point exists by using the limit of derivative function at the piecewise point under some conditions.
出处
《西南民族大学学报（自然科学版）》
CAS
2003年第4期402-405,共4页
Journal of Southwest Minzu University(Natural Science Edition)
基金
四川省综合教改项目<新世纪四川省大学数学教学改革与实践>资助
