摘要
给出了简单单变量凸函数的定义,描述了凸函数的性质及在Rn中的推广,最后给出凸函数的判断方法。
In this paper, the definition of convex function with single-variable is given. Properties of the convex function and its promotion in R^n are described. At last, judgment methods of the convex function are introduced.
出处
《新乡学院学报》
2009年第6期13-14,共2页
Journal of Xinxiang University
关键词
凸函数
充要条件
凸集
convex function
necessary and sufficient condition
convex set
