对称区域上的二元对称函数的积分性质

导出了把一元定积分中奇、偶函数在关于原点的对称区间上的积分性质推广到在对称区域上的二元对称函数的二重积分的情形。     

从李贺诗歌风格看怪奇派诗人对鲍照的接受

面对“极盛难继”的局面,中唐诗人寻求突破的策略是创新求奇,为其接受鲍照奠定了心理动因。其代表诗人李贺之诗“奇诡”、“瑰丽”,鬼气弥漫,偏嗜乐府,均最能见出其与鲍照之间的渊源关系。     

关于图的奇优美性

随着计算机的发展,图的标号在网络和通讯等领域中的应用越来越广泛.Gnanajoethi提出一个猜想:每棵树都是奇优美的,本文给出了奇优美图的一个必要条件,并讨论了两类图的奇优美性.     

相对奇函数与相对偶函数

本文提出相对奇函数与相对偶函数的概念,并讨论它们的几条基本性质.     

The Riemann hypothesis

This article introduces one of the outstanding problems of today-a legacy of Bernhard Riemann     

The ‘grand simulation’ and dreams of success by assessment: Baudrillardian reflections on (trans-)national school policy

ABSTRACT

Since the 1990s, European school policy has been steered by management dreams that systematic monitoring and assessment would guide schools and society toward a future of greater quality, efficiency, and growth. This article, drawing on Jean Baudrillard, explores whether it makes sense to rearticulate this dream of optimization by assessment in terms of a ‘grand simulation’ that brings into circulation a play of signs in terms of global quantifiable comparability supported by the aura of objectivity, statistics and big data. Does this dream of optimization suck us into a virtual world of ‘ingrowing obesity,’ where an uninterrupted supply of statistics and digital platforms loosens our grip on the real by the alchemical use of numbers, algorithms, and signs? The article argues that by observing school policy as seductive effects of a larger crisis-producing and competition-motivating (self-)assessment simulation, it becomes possible to rearticulate a persistent trend in (trans)national school policies in a language different from this trend’s own self-referencing logic – and thus to question the trend itself. Danish school policy demonstrates as a European national case how the simulation changed local educational traditions by building up a national curriculum that made schools and students comparable and hereby amenable to increased assessment.     

基于最大根方法的实代数数符号判定算法

对一类特殊的实代数数:可以分成二部分之和,且其中一部分为它定义多项式的最大根,另一部分的相反数也是它定义多项式的最大根进行了研究.给出它的符号判定算法,并用Maple9.0系统编程实现.该算法同样适用于二个定义多项式均仅含单实根的实代数数.     

探讨配平氧化还原方程式的新方法

利用在氧化还原反应中有关元素原子氧化数的变化值,采取相对系数法比较容易配平方程式,也可以采取加减法平衡氧化数变化值达到配平方程式的目的,为配平方程式探讨新方法提供选择.     

数与形

通过几个例子阐述了数与形的密切联系,"形"给出了"数"的几何直观,"数"揭示了"形"的本质特征,用数形结合的方法去解决一些数学问题,可使问题很快得到解决,有的数学问题,只有通过形才能得到解决.     

Monte Carlo方法计算圆周率

用Java程序计算圆内随机点的点数与正方形内随机点数之比，得到正方形和其内切圆的面积比，计算出圆周率。