导数的定义

I will just include a definition of the derivative in the next section.

我只包括在未来一段导数的定义。

OK, so that´s the definition of a partial derivative.

好的，那就是偏导数的定义。

Finally, the definition of higher relative derivative is given. Further, we give an interpretation by an example.

最后给出了高阶相对导数的定义，并通过实例加以说明。

We know that the limit is the basis for derivative knowledge, for learning an important role in the definition of the derivative of.

我们知道，极限是导数知识的基础，对于学习导数的定义具有重要的作用。

This article use the diverse function extremum and the local derivative´s definition formula to prove the relation between extremum obtained by the two function and the dollar function at some point.

利用多元函数极值的定义和偏导数的定义公式证明二元函数与一元函数在某点取得极值的关系。