复合函数的导数是构成函数的导数之积。
The derivative of the composite function is the product of the derivatives of the components.
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.
本文建立了多元复合函数的二阶偏导数公式。
In this paper, the formula of partial derivative of second order on compound function of many varables is established.
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