摘要
比较《数学分析》、《高等数学》课程中关于凸凹函数弦线法与切线法两种不同形式的定义 ,在此基础上主张一个解析性与几何直观性兼具的折线法定义 ,并由此定义简洁地给出关于凸凹函数连续性及左。
This article compares the different definitions of c ho rd method and tangential method on convex concave functions in the courses of Analysis of Mathematics and Higher Mathematics,and based on this puts forward th e definition for polygonal line method involving both analysis and direct observ ation.On the basis of this definition,the article briefly presents the related r esults about continuity of convex concave functions and existence of left and r ight derivatives etc.
出处
《南阳师范学院学报》
CAS
2002年第4期16-18,23,共4页
Journal of Nanyang Normal University
关键词
凸函数
定义
不等式
等价
convex function
definition
inequality
equivalence
