绝对导数 absolute derivative
- 定义了n重导数,n元绝对连续函数,广义n重原函数及牛顿n重积分。
It defines n-ple derivative, n-ary absolutely continuous function, generalized n-ple primitive function and Newton n-ple integral. - 在绝对节点坐标体系下研究了具有分数导数阻尼特性元件的多体系统动力学建模、求解问题。
Based on the absolute nodal coordinate(ANC) framework, the dynamics modeling and solution strategy for the multibody system with fractional derivative damper is investigated. - 在边界提取时选取有一定间距的像素分别计算三原色梯度,把其中绝对值最大的梯度作为边界存在的判据之一,同时根据二阶导数符号变化提取边界。
Third, the gradient between two pixels that have certain distance was calculated in three color components respectively, and then the maximum of gradients of the three was attained.
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