This article points out the methods to solve the derivative of piecewise function and discusses the derivative problem at pointofdemarcation 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 pointofdemarcation.
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.