This article points out the methods to solve the derivative of piecewise function and discusses the derivative problem at point of demarcation of piecewise function in detail.
本文主要叙述分段函数的求导方法，并对分段函数在分界点处的求导作了细致的讨论。
An improved exemplar-based inpainting method is proposed, which considers the effects of the data term and confidence term by defining the priority function as a piecewise function.
本文提出了一种改进的基于样本的图像修复方法，该方法考虑了数据项和置信度项所起的作用，把优先级取为分段函数。
Piecewise function is used to describe curve characteristic.
新模型采用分段函数描述曲线变化特征。
Piecewise function is used to describe curve characteristic.
新模型采用分段函数描述曲线变化特征。
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