generalized derivatives

例句：

1. 1. The function is a generalized derivative of the exponential function.
   这个函数是指数函数的一个广义导数。
2. 2.In mathematics, a generalized derivative can be used to describe the rate of change of a function with respect to a variable.
   在数学中，一个广义导数可以用来描述函数随变量变化的速率。
3. 3. The concept of generalized derivatives has applications in various fields, including physics and engineering.
   广义导数的概念在物理学和工程学等多个领域中都有应用。