通过对拟合曲线函数的微分运算，得到目标航迹向与航速数据。

Through differential operation of approaching curve function, we can obtain the data of target trace direction and trace velocity.

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其原理是将多次微分运算施加于肖像的脸部区域，从而突显出脸部的高亮度分布区。

The principle is to impose multiple differential operators on facial region, which highlights the nearby area of the facial organs and form many high-brightness distribution areas.

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另外，群体特性通过微分运算及其逆运算所得到的李代数的代数结构而得到了解释。

Lie's Theory Within the framework of Lie' Theory, we associate infinitesimal transformations making up a Lie algebra with finite operations which are obtained from the previous ones by exponentiation.

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