那么乘积法则对点乘求导没问题。

So, product rule is OK for taking the derivative of a dot product.

youdao

还有个很有趣的现象要注意一下，就是我们可以用乘积法则,对向量表达式求导，无论是点乘或叉乘。

OK, now, so there's an interesting thing to note, which is that we can use the usual product rule for derivatives with vector expressions, with dot products or cross products.

youdao

用函数的链式法则和乘积公式给出了参数函数和复合函数的高阶导数的计算公式。

The formulas calculating higher derivatives of parametric functions and composite functions are given by the chain rule and the product formula for derivatives.

youdao