By using nonstandard analysis, we define new generalized functions as discrete functions, and their derivatives are defined as difference quotients.
在非标准分析框架下，用离散函数定义新广义函数，用差商定义其导数。
In this paper, a new type of generalized convex functions—strongly prequasi-invex functions is introduced.
本文引入了一类新的广义凸函数—强预拟不变凸函数。
They are new classes of generalized convex functions.
此类新类型的函数是凸性的推广。
In this paper, we introduce a new concept of generalized derivative, and derive its operational rules and the mean value theorem of continuous functions.
文章提出了一种广义导数的概念，得到了广义导数的运算法则，以及连续函数的中值定理。
In this paper, we introduce a new concept of generalized derivative, and derive its operational rules and the mean value theorem of continuous functions.
文章提出了一种广义导数的概念，得到了广义导数的运算法则，以及连续函数的中值定理。
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