【摘要】 利用一阶全微分形式不变性和多元函数全微分的四则运算法则,得到了求多元复合函数高阶偏导数的新方法。更多还原

【Abstract】 Applying the preservation of the form of the first order total differential and the four arithmetic operations of the total differential for multivariate functions, a new method is gained to find the higher order partial derivative of multivariate composite functions. It is convenient and easy to solve the practical problems with the method.更多还原