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Folding the regular pentagon 折叠正五边形
Pub Date : 2016-05-17 DOI: 10.1080/17498430.2016.1162402
John . Sharp
I n his recent paper Two beginnings of geometry and folding: Hermann Wiener and Sundara Row, Michael Friedman (2016) has touched on a neglected aspect of the history of mathematics which is often referred to as recreational mathematics. There is a vast literature on the subject which has often contributed to the more formal side of mathematics and does not often feature in history textbooks although David Singmaster has published a bibliography of recreational mathematics which is extensive. Excerpts were included in BSHM newsletters. Because the history of recreational mathematics is neglected somewhat, it sometimes means that origins of some aspects of mathematics are lost. Such a case is the folding of polygons as knots particularly the pentagonal knot in Friedman’s Figure 2. He says
在他最近的论文《几何和折叠的两个开端:赫尔曼·维纳和桑德拉·罗》中,迈克尔·弗里德曼(2016)触及了数学历史中一个被忽视的方面,这个方面通常被称为娱乐数学。关于这一主题的大量文献通常对数学的正式方面做出了贡献,并且通常不会出现在历史教科书中,尽管David Singmaster已经出版了一本广泛的娱乐数学参考书目。节选内容刊登在BSHM的通讯中。由于娱乐数学的历史在某种程度上被忽视了,这有时意味着数学的某些方面的起源丢失了。这种情况是多边形折叠成结,特别是弗里德曼图2中的五边形结。他说
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引用次数: 1
Seduced by logic: Émilie Du Châtelet, Mary Somerville and the Newtonian revolution, by Robyn Arianrhod 被逻辑诱惑:Émilie杜夏·<e:2>特莱特,玛丽·萨默维尔和牛顿革命,罗宾·阿里安罗德著
Pub Date : 2016-05-03 DOI: 10.1080/17498430.2016.1170358
Donald L. Opitz
discussion is offered and no strong opinions voiced, but, given the extent to which these matters have provided the material for notorious disputes, this is perhaps wise. I have a couple of minor quibbles. The lives of the scientists in the vignettes are, of course, sometimes right-censored, since they are still alive, but many are also leftcensored, as if their dates of birth were unimportant. Also the title promises us Permutation Methods but what is largely offered is Permutation Tests. This, given the nature of the field, is perhaps inevitable, but it also provides one explanation as to why not all statisticians will share the enthusiasm of the authors as regards permutation tests. They provide logical rigour within a rather limited framework. As soon as one asks for more it becomes less obvious that they are a good place to start. A major omission is that there is no reference to John Nelder’s theory of General Balance (Senn 2004) which is at the heart of the GenStat approach to analysis of variance, and which categorizes experiments in terms of block and treatment structure. This is related to deep ideas of symmetries in designed experiments and provides a natural link between analysis of variance and permutation methods. However, the ideas have made little impact in the USA and perhaps the one charge that can be laid against the authors is that their book is a little Americocentric. These are minor criticisms, however. The authors are to be congratulated on this very fine collaboration. In their acknowledgements they mention table 20 at the Rainbow Restaurant, Fort Collins, Colorado at which most of the book was written. This surely deserves a plaque. It conjures up a delightful vision of three scientists first ordering a random permutation of one starter, one main and one pudding, and then settling down to the serious business of the day. In short my recommendation to the reader is clear: buy this book! My recommendation to those invited to review using Springer’s online reviewing ‘tool’ is also clear: don’t!
讨论进行了,但没有强烈的意见,但是,考虑到这些问题为臭名昭著的争论提供了材料的程度,这也许是明智的。我有几个小问题。当然,小插图中的科学家们的生活有时会受到审查,因为他们还活着,但许多人也会受到审查,就好像他们的出生日期不重要一样。此外,标题承诺我们排列方法,但主要提供的是排列测试。考虑到这个领域的性质,这也许是不可避免的,但它也提供了一个解释,为什么不是所有的统计学家都会像作者一样对排列测试充满热情。它们在相当有限的框架内提供逻辑严谨性。一旦一个人要求更多,他们就不那么明显是一个好的起点。一个主要的遗漏是没有参考John Nelder的一般平衡理论(Senn 2004),该理论是GenStat分析方差方法的核心,并根据块和处理结构对实验进行分类。这与设计实验中对称性的深层思想有关,并在方差分析和排列方法之间提供了自然的联系。然而,这些想法在美国几乎没有产生什么影响,也许可以对作者提出的一个指控是,他们的书有点美国中心主义。然而,这些都是次要的批评。值得祝贺的是,两位作者的合作非常出色。在致谢中,他们提到了科罗拉多州柯林斯堡彩虹餐厅的20号桌,这本书的大部分内容都是在这里完成的。这当然值得一枚牌匾。它让人联想到一个愉快的场景:三位科学家首先随机点了一份前菜、一份主菜和一份布丁,然后开始处理当天的正事。总之,我对读者的建议很明确:买这本书!我对那些受邀使用b施普林格在线评论“工具”进行评论的人的建议也很明确:不要!
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引用次数: 1
George Boole and Walsh's delusions 乔治·布尔和沃尔什的妄想
Pub Date : 2016-05-03 DOI: 10.1080/17498430.2015.1113374
D. Murphy
In the bi-centenary of the birth of George Boole, there were many celebrations of his well-known writings and achievements. This paper outlines a little known account he wrote at the request of his good friend Augustus De Morgan. It shows Boole in the unusual role of detective, seeking details on a contemporary named John Walsh. Walsh was not well known then and is completely forgotten now. The details supplied by Boole and De Morgan are now the only memories remaining of the interesting footnote in mathematical history that was John Walsh. Boole's position as professor in Queen's College, Cork, allowed him fortuitous access to the details of Walsh's biography.
在乔治·布尔诞辰200周年之际,人们举行了许多庆祝他的著名著作和成就的活动。这篇论文概述了他应好友奥古斯都·德·摩根的要求所写的一篇鲜为人知的故事。影片中,布尔扮演了一个不同寻常的侦探角色,寻找同时代人约翰·沃尔什(John Walsh)的细节。沃尔什当时并不出名,现在也完全被遗忘了。布尔和德摩根提供的细节,现在是约翰·沃尔什这个数学史上有趣的注脚所留下的唯一记忆。布尔在科克市皇后学院(Queen’s College, Cork)担任教授,这让他有幸接触到了沃尔什传记的细节。
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引用次数: 0
A Chronicle of Permutation Statistical Methods: 1920–2000, and Beyond, by K J Berry, J E Johnston, and P J W Mielke 排列统计方法编年史:1920-2000及以后,作者:K·J·贝里、J·E·约翰斯顿和P·J·W·米尔克
Pub Date : 2016-05-03 DOI: 10.1080/17498430.2015.1129087
S. Senn
The extraordinary and astonishing idea of making a statistical inference by shuffling treatment labels, whilst conditioning on the actual values observed, is associated in particular with R A Fishe...
通过变换处理标签来进行统计推断的非凡和惊人的想法,同时根据观察到的实际值进行调节,特别是与R a fish…
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引用次数: 0
George Eliot and mathematics 乔治·艾略特与数学
Pub Date : 2016-05-03 DOI: 10.1080/17498430.2016.1162406
P. M. Lee
On Sunday, an interesting Russian pair came to see us,—M. and MMe. Kovalevsky [sic]: she, a pretty creature, with charming modest voice and speech, who is studying mathematics (by allowance through the aid of Kirchoff) at Heidelberg; he, amiable and intelligent, studying the concrete sciences apparently,—especially geology; and about to go to Vienna for six months, leaving his wife at Heidelberg!
星期天,一对有趣的俄罗斯夫妇来看我们。还有科瓦列夫斯基夫人:她是个漂亮的姑娘,嗓音和谈笑文雅,在海德堡学习数学(靠基尔霍夫的资助);他和蔼可亲,聪明伶俐,显然在研究具体的科学——尤其是地质学;他准备去维也纳呆六个月,把妻子留在海德堡!
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引用次数: 0
Commutativity and collinearity: a historical case study of the interconnection of mathematical ideas. Part II 交换性与共线性:数学思想相互联系的历史案例研究。第二部分
Pub Date : 2016-05-03 DOI: 10.1080/17498430.2015.1046038
A. Rice, Ezra Brown
This paper investigates the discovery of an intriguing and fundamental connection between the famous but apparently unrelated mathematical work of two late third-century mathematicians. This link went unnoticed for well over 1500 years until the publication of two groundbreaking but again ostensibly unrelated works by two German mathematicians at the close of the nineteenth century. In this, the second and final part of the paper, we continue our examination of the chain of mathematical events and the related development of mathematical disciplines, without which the connection might never have been noticed in the first place.
本文调查了三世纪晚期两位著名但显然不相关的数学家的数学工作之间一个有趣的和基本的联系的发现。这种联系被忽视了1500多年,直到19世纪末两位德国数学家发表了两篇开创性的、但表面上又不相关的作品。在本文的第二部分,也是最后一部分,我们将继续考察数学事件链和数学学科的相关发展,如果没有数学事件链和数学学科的相关发展,这种联系可能永远不会被注意到。
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引用次数: 1
Early tables resembling those of natural logarithms 类似于自然对数的早期表格
Pub Date : 2016-04-14 DOI: 10.1080/17498430.2015.1116052
B. Burn
That natural logarithms may be constructed from Napier's logarithms is no surprise to a modern mathematician, but the thought that this might have been done within ten years of Napier's original publication seems a historical impossibility, since by that time, most of the modern constituents of the notion had not been conceived. Nonetheless the practical use of Napier's tables required interpolation, and the systematization of that interpolation generated a new table with a remarkable similarity to natural logarithms. This interpolation table was later extended by Speidell to stand alongside his ‘New Logarithms’, as an alternative form.
自然对数可以从纳皮尔的对数中构造出来,这对现代数学家来说并不奇怪,但想到这可能在纳皮尔最初发表后的十年内就完成了,这在历史上似乎是不可能的,因为到那时,这个概念的大多数现代成分还没有被构想出来。尽管如此,纳皮尔表的实际应用需要插值,而这种插值的系统化产生了一个与自然对数非常相似的新表。这个插值表后来被斯皮德尔扩展,与他的“新对数”并列,作为另一种形式。
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引用次数: 0
P G Tait's statistical models P G泰特的统计模型
Pub Date : 2016-04-11 DOI: 10.1080/17498430.2015.1090096
Elizabeth F. Lewis
This paper explains how the discovery of a pocket notebook brings to light P G Tait's surprising involvement in statistics. Tait (1831–1901) was Professor of Mathematics at the Queen's College, Belfast and later of Natural Philosophy at the University of Edinburgh. He was a Fellow of the Royal Society of Edinburgh and a former Fellow of Peterhouse, Cambridge (senior wrangler and first Smith's prizeman in 1852).
这篇论文解释了袖珍笔记本的发现如何揭示了P·G·泰特对统计学的惊人参与。泰特(1831-1901)是贝尔法斯特女王学院的数学教授,后来在爱丁堡大学担任自然哲学教授。他是爱丁堡皇家学会的会员,剑桥大学彼得学院的前会员(高级牧马人,1852年第一个史密斯奖得主)。
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引用次数: 0
Details on the mathematical interplay between Leonardo da Vinci and Luca Pacioli 列奥纳多·达·芬奇和卢卡·帕乔利之间数学上的相互作用
Pub Date : 2016-04-11 DOI: 10.1080/17498430.2015.1091969
R. Pisano
Leonardo da Vinci (1452–1519) maintained a strong relationship with mathematics, but the benefits of this connection unfortunately had little impact in his time. His meeting with Luca Pacioli (1445–1517) in Milan in 1496 was crucial: the two men would become friends and a deep mutual respect would preside over Leonardo da Vinci's improving his mathematical knowledge while contributing to the drawings of Pacioli's De divina proportione (Milano, 1496–98) (Pacioli 1509a). Based on my recent works on the relationship between mathematics and physics during the Renaissance, here I resume some results on the conceptual mathematical frameworks between two Italian scholars.
列奥纳多·达·芬奇(1452-1519)与数学有着密切的联系,但不幸的是,这种联系的好处在他的时代几乎没有影响。1496年,他在米兰与卢卡·帕乔利(1445-1517)的会面至关重要:两人将成为朋友,深厚的相互尊重将使莱昂纳多·达·芬奇提高他的数学知识,同时为帕乔利的《神圣比例》(米兰,1496 - 98)(帕乔利159a)的绘画做出贡献。根据我最近对文艺复兴时期数学和物理关系的研究,我在这里重新介绍两位意大利学者之间关于概念数学框架的一些结果。
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引用次数: 7
Defining continuity of real functions of real variables 定义实变量实函数的连续性
Pub Date : 2016-04-11 DOI: 10.1080/17498430.2015.1116053
J F Harper
Continuity of a real function of a real variable has been defined in various ways over almost 200 years. Contrary to popular belief, the definitions are not all equivalent, because their consequences for four somewhat pathological functions reveal five essentially different cases. The four defensible ones imply just two cases for continuity on an interval if that is defined by using pointwise continuity at each point. Some authors had trouble: two different textbooks each gave two arguably inconsistent definitions, three more changed their definitions in their second editions, two more claimed continuity at a point for functions not defined there, and one gave a definition implying it for a function with no limit there.
近200年来,关于实变量实函数的连续性已经有了各种不同的定义。与普遍的看法相反,这些定义并不都是等同的,因为它们对四种有点病态的功能的影响揭示了五种本质上不同的情况。这四个站住脚的定理暗示了区间上连续性的两种情况,如果区间是通过在每个点上使用点向连续性来定义的话。一些作者遇到了麻烦:两本不同的教科书都给出了两个有争议的不一致的定义,还有三本在第二版中改变了他们的定义,还有两本声称函数在一点上没有定义连续性,还有一本给出了一个定义,暗示函数在一点上没有极限。
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引用次数: 4
期刊
BSHM Bulletin: Journal of the British Society for the History of Mathematics
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