The paper probes into the relation between functional differentiability and the derivative function limit, and the relation between asymptote of function and the derivative function limit.
探讨函数的可导性、函数的渐近线与导函数的极限之间的关系。
This paper analyses several characters of derivative function, presents effective methods to discuss existential conditions of primitive function and gives number of facilitated conclusions.
本文通过对导函数若干性质的分析，采用简洁的方法，对原函数存在的条件进行了探讨，给出了几个便于使用的结论．。
By using the statistic properties of the correlation coefficient, a curve correlation coefficient is calculated, and then the matching point is obtained through evaluating it's derivative function.
利用相关系数在真实匹配点附近的统计特性，通过对相关系数进行曲线拟合，根据其一阶导数确定最大相关系数所在的位置，快速得到亚像素匹配点。
By using the statistic properties of the correlation coefficient, a curve correlation coefficient is calculated, and then the matching point is obtained through evaluating it's derivative function.
利用相关系数在真实匹配点附近的统计特性，通过对相关系数进行曲线拟合，根据其一阶导数确定最大相关系数所在的位置，快速得到亚像素匹配点。
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