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级数是高等数学教学中的一个重要内容,而正项级数又是级数的重要组成部分,判别正项级数敛散性的方法很多,文章主要讨论了正项级数判别法的一些特性,以及如何根据通项的特点来选择判别方法,使级数敛散性的判别变得更为简单。 相似文献
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判别正项级数∑n=1^∞an的敛散性,当达朗贝尔判别法、柯西判别法、拉贝判别法失效后,可用本文的方法判定敛散性。 相似文献
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在这篇文章中,我们基于级数敛散性的库默尔判别法,补充了p-级数敛散性的一种新的证明方法。 相似文献
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极限理论在级数敛散性判别中具有重要地位。本文将结合极限理论中阶的概念对正项级数比较判别法的使用做相关探讨,给出如何将级数通项进行放大或缩小的方法指导,提供使用比较判别法判别敛散性的一种便捷模式。 相似文献
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无穷级数是高等数学的一个重要组成部分,形式上为相对独立的一块内容,理论上更为抽象,学生在学习这章内容时大多感觉比较困难,在判别级数敛散性时往往思路不清。针对这种状况,本文谈谈几点看法院(1)教师在开始讲授这章内容时,应该向学生介绍清楚学习本章内容的作用所在;(2)对于这章内容的教学,教师应该有所侧重讲解,讲课的顺序也不能完全同于教材的排版顺序;(3)在讲授正课时,教师应该对学生讲解最常用而又有简单有顺序的敛散性判别法。 相似文献
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If, as a number of writers have predicted, the computers of the future will possess intelligence and capacities that exceed our own then it seems as though they will be worthy of a moral respect at least equal to, and perhaps greater than, human beings. In this paper I propose a test to determine when we have reached that point. Inspired by Alan Turing’s (1950) original “Turing test”, which argued that we would be justified in conceding that machines could think if they could fill the role of a person in a conversation, I propose a test for when computers have achieved moral standing by asking when a computer might take the place of a human being in a moral dilemma, such as a “triage” situation in which a choice must be made as to which of two human lives to save. We will know that machines have achieved moral standing comparable to a human when the replacement of one of these people with an artificial intelligence leaves the character of the dilemma intact. That is, when we might sometimes judge that it is reasonable to preserve the continuing existence of a machine over the life of a human being. This is the “Turing Triage Test”. I argue that if personhood is understood as a matter of possessing a set of important cognitive capacities then it seems likely that future AIs will be able to pass this test. However this conclusion serves as a reductio of this account of the nature of persons. I set out an alternative account of the nature of persons, which places the concept of a person at the centre of an interdependent network of moral and affective responses, such as remorse, grief and sympathy. I argue that according to this second, superior, account of the nature of persons, machines will be unable to pass the Turing Triage Test until they possess bodies and faces with expressive capacities akin to those of the human form. 相似文献
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随着信息技术的迅速发展,计算机和网络在考试管理中的应用逐步深入,考试管理中出现了网络化考试形式。网络化考试具有组织管理高效、考试时间灵活、监考难度较小、组考成本较低等特点,在多方面给考试管理带来更为深刻的影响,要求考试管理机构做出相应变革,以便适应考试自身发展的需要。 相似文献
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