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。

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For solving blasting flood diversion constraints of containing 0 1 factor, this paper presents a simplified method separate phase algorithm of judging flood diversion point of demarcation.

针对隐含着0 ~ 1要素、难以拟线性化的扒口分洪问题，提出了判断扒口分洪界点及其相应的分阶段算法的处理方法。

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Organization of activities also provides the starting point for transaction demarcation (discussed below), where particular business operations are performed in the context of a transaction.

活动的组织还提供事务划分的起始点(在下面讨论)，在此，特定的业务运作在事务的情况下执行。

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