extremum in multivariable functions 多元函数极值
Extremum of multivariable functions 多元函数的极值
multivariable logic functions 多变量逻辑函数
Numerical and vectorial analysis Differential calculus: multivariable functions.
数值和矢量分析微分：多变量函数。
The Laplacian in the columnar and spherical coordinates is deduced by using the derivative principle of the multivariable functions.
使用多元复合函数微商法则，导出拉普拉斯算符在柱面坐标系和球面坐标系中表达式。
Evaluation relevant to the partial derivatives of the multivariable functions is often done in scientific computation, usually by means of the symbolic differentiation or the divided difference.
科学计算及其应用常常需要多变量函数的有关偏导数问题的计算，通常使用的计算方法是符号微分或差分近似。
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