... left-hand component 左侧数 left-hand derivative 左导数 left-hand digit 左侧数位，高位数位 ...
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... left hand differentiable function 左可微函数 左持续函数 left side derivative 左导数 left side half open interval 左半开区间 ...
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... 0 0 x x x x x f x f lim 0 存在，则称之为 x f 在点 0 x x 处的左导数（derivative on the left），记作 0 x f 或 0 x f 0 ，即 0 0 x x 0 x x x f x f lim x f 0 ...
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在左截断右删失数据下，我们基于乘积限估计给出了分位密度估计，获得了分位密度估计及其导数的重对数律。
In this paper laws of the iterated logarithm for quantile density estimator and its derivative estimators are established when data are subject to left-truncated and right-censored observations.
并讨论说明了导函数的右(左)极限与右(左)导数之间的关系。
And demonstrates the relations between the right (left) limit of function and right (left) derivative.
由一错例引出了讨论导函数在分段点处的左、右极限与对应函数的左、右导数相等的分段函数在分段点处导数的一种求法。
A false example is given to educe the discussion of a solution to the derivative of subsection function at the point of subsection.
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