Author(s): LU Jiejing
Pages: 337-339
Year: 2001 Issue:  3
Journal: JOURNAL OF TIANJIN MEDICAL UNIVERSITY
Keyword:  函数; 左导数; 右导数; 极值;
Abstract: 目的:对某命题作进一步探讨,追求结果的完备性和完美性.方法:逻辑推理和几何说明.结果:得出命题A和命题B.结论:某命题和本文的命题A、命题B达到了预定的目的.