摘要
凹(凸)函数是讨论函数性态时经常遇到的重要概念.将一元函数的凹凸性推广到二元函数上,讨论了二元函数凹凸性的几个判别法,给出了二元凹(凸)函数的最小(大)值的求法.
Concave（convex）function is important concepts which is often encountered when discuss the nature of function.Extended the concave and convex of functions of one variable extension to the dual function,obtained some criterions of concave or convex of dual function,gave the methods of seeking for the most value of the dual concave（convex）function.
出处
《高师理科学刊》
2010年第5期25-28,共4页
Journal of Science of Teachers＇College and University
关键词
二元函数
凹凸性
投影曲线
最大值
最小值
binary function
concave or convex
projection curve
maximum
minimum
