Any time a built-in primitive function is available, that will be a better design alternative than creating custom code.

如果内置基本函数在任何时间都可用，则与创建自定义代码相比，它是较好的设计备选方案。

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It defines n-ple derivative, n-ary absolutely continuous function, generalized n-ple primitive function and Newton n-ple integral.

定义了n重导数，n元绝对连续函数，广义n重原函数及牛顿n重积分。

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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．。

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Moreover, anti-state forces (such as the Tamil Tigers, the IRA in Northern Ireland, or the Kosovo Liberation Army) often function rather like states in the territory they control, operating welfare services and primitive justice systems, while at the same time engaging in crime, from organ-snatching to bank heists, to keep their coffers full.

ECONOMIST: Failed states