摘要
列举出反例指出了教材中关于初等函数定义的叙述欠准确以及关于一元或多元初等函数连续性的结论错误。对上述两个问题都指出了正确的说法。
Several counter-examples are given.The teaching material about the narrative of elementary function definition is inaccurate and the continuity conclusion error of unary or multiple elementary function are painted out.The two problems above have been given the right statement.
出处
《阜阳师范学院学报（自然科学版）》
2011年第1期33-34,89,共3页
Journal of Fuyang Normal University(Natural Science)
关键词
初等函数
定义
连续性
elementary function
definition
continuity
