{"title":"The International commission on mathematical instruction, 1908–2008: People, events and challenges in mathematics education","authors":"Thomas Preveraud","doi":"10.1016/j.hm.2024.02.007","DOIUrl":"10.1016/j.hm.2024.02.007","url":null,"abstract":"","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"67 ","pages":"Pages 25-27"},"PeriodicalIF":0.5,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140199716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Decimal fractional numeration and the decimal point in 15th-century Italy","authors":"Glen Van Brummelen","doi":"10.1016/j.hm.2024.01.001","DOIUrl":"10.1016/j.hm.2024.01.001","url":null,"abstract":"<div><p>The earliest known appearance of the decimal point was in the interpolation column of a sine table in Christopher Clavius's <em>Astrolabium</em> (1593). But this is a curious place to introduce such a significant new idea, and the fact that Clavius never took advantage of it in his own later writings has remained unexplained. We trace Clavius's use of decimal fractional numeration and the decimal point back to the work of Giovanni Bianchini (1440s), whose decimal system was a distinguishing feature of his calculations in spherical astronomy and metrology. While one needed to operate with Bianchini's decimal system to work with his astronomy, Regiomontanus copied it only in part. The rest of the European astronomical community followed Regiomontanus, and Bianchini's system reappeared only with its revival by Clavius.</p><p>La première apparition connue du point décimal se trouve dans la colonne d'interpolation d'une table de sinus dans l’<em>Astrolabium</em> de Christopher <span>Clavius (1593)</span>. Mais il s'agit là d'un endroit curieux pour introduire une nouvelle idée aussi importante, et le fait que Clavius n'en ait jamais tiré parti dans ses écrits ultérieurs reste inexpliqué. L'utilisation par Clavius de la numération fractionnaire décimale et du point décimal remonte aux travaux de Giovanni Bianchini (années 1440), dont le système décimal était une caractéristique distinctive de ses calculs en astronomie sphérique et en métrologie. Alors qu'il fallait utiliser le système décimal de Bianchini pour travailler avec son astronomie, Regiomontanus ne l'a copié qu'en partie. Le reste de la communauté astronomique européenne suivit Regiomontanus, et le système de Bianchini ne réapparut qu'avec Clavius.</p></div>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"66 ","pages":"Pages 1-13"},"PeriodicalIF":0.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0315086024000016/pdfft?md5=59df168ecdede94165b4e34ed494da77&pid=1-s2.0-S0315086024000016-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139917984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The saṃyoga-meru: A combinatorial tool in the Saṅgīta-ratnākara","authors":"G Sreeram, Aditya Kolachana","doi":"10.1016/j.hm.2024.02.003","DOIUrl":"https://doi.org/10.1016/j.hm.2024.02.003","url":null,"abstract":"<div><p>The <em>Saṅgīta-ratnākara</em> (Ocean of Music) of Śārṅgadeva (c. 1225 CE) is a 13th century text on musicology in Sanskrit. The fifth chapter of the <em>Saṅgīta-ratnākara</em> deals with a general analysis of all possible rhythms (<em>tāla</em>s) which can be obtained by combining a set of basic rhythmic components known as <em>tālāṅga</em>s. Here, Śārṅgadeva describes the construction of the <em>saṃyoga-meru</em> (Table of Combinations), a tool that tabulates the total number of possible <em>tāla</em>s of a given duration which are obtained by combining elements of different subsets of <em>tālāṅga</em>s. In this paper, we discuss the mathematical rationale employed by Śārṅgadeva in the construction of the <em>saṃyoga-meru</em>.</p></div>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"66 ","pages":"Pages 14-25"},"PeriodicalIF":0.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0315086024000053/pdfft?md5=1e9ed71e46f5239130c59d4c493d2de7&pid=1-s2.0-S0315086024000053-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140190887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"“On the Unviability of Interpreting Leibniz's Infinitesimals through Non-standard analysis”","authors":"Richard Arthur , David Rabouin","doi":"10.1016/j.hm.2023.12.001","DOIUrl":"10.1016/j.hm.2023.12.001","url":null,"abstract":"<div><p>Non-standard analysis has often been presented as the proper framework for expressing rigorously Leibniz's conception of infinitesimals. This paper intends to study this interpretation from an historical point of view and to dispel a series of misunderstandings on which it rests. In order to do so, we propose to go back to Leibniz's conception of quantity, number and magnitude, an approach which has not been developed yet in the literature.</p></div>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"66 ","pages":"Pages 26-42"},"PeriodicalIF":0.5,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S031508602300085X/pdfft?md5=53a9a9c365002d97a94a541442d00233&pid=1-s2.0-S031508602300085X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139577895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Historia MathematicaPub Date : 2024-01-01Epub Date: 2023-07-03DOI: 10.1007/s11098-023-01968-w
Salim Hirèche
{"title":"Grounding, necessity, and relevance.","authors":"Salim Hirèche","doi":"10.1007/s11098-023-01968-w","DOIUrl":"10.1007/s11098-023-01968-w","url":null,"abstract":"<p><p><i>Grounding necessitarianism</i> (GN) is the view that full grounds necessitate what they ground. Although GN has been rather popular among philosophers, it faces important counterexamples: For instance, A = [Socrates died] fully grounds C = [Xanthippe became a widow]. However, A fails to necessitate C: A <i>could</i> have obtained together with B = [Socrates and Xanthippe were never married], without C obtaining. In many cases, the debate essentially reduces to whether A indeed <i>fully</i> grounds C-as the contingentist claims-or if instead C is fully grounded in A<sup>+</sup>, namely A <i>plus</i> some supplementary fact S (e.g. [Xanthippe was married to Socrates])-as the necessitarian claims. Both sides typically agree that A<sup>+</sup> necessitates C, while A does not; they disagree on whether A or A<sup>+</sup> fully grounds C. This paper offers a novel defence of the claim that, in these typical cases, unlike A<sup>+</sup>, A fails to fully ground C-thereby bringing further support to GN. First and foremost, unlike A<sup>+</sup>, A fails to fully ground C because it fails to contain just what is <i>relevant</i> to do so, in two distinct senses-<i>explanatory</i> and <i>generative</i> relevance. Second, going for A, rather than A<sup>+</sup>, as a full ground undermines not just grounding <i>necessitarianism</i>, but modally weaker views which even contingentists may want to preserve.</p>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"39 1","pages":"2177-2198"},"PeriodicalIF":1.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11383838/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76333616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cyclic quadrilaterals: Solutions of two Japanese problems and their proofs","authors":"J. Marshall Unger","doi":"10.1016/j.hm.2023.08.001","DOIUrl":"10.1016/j.hm.2023.08.001","url":null,"abstract":"<div><p>Late 18th and early 19th century Japanese mathematicians (<em>wasanka</em>) found solutions of two problems concerning the incircles of the quarter-triangles and skewed sectors of cyclic quadrilaterals. There is a modern proof of the first solution, but it makes extensive use of trigonometry and is therefore unlikely to be what a <em>wasanka</em> would have written. As for the second solution, Aida Yasuaki (1747–1817) gave two proofs for it, the second of which has been summarized in Japanese, but not the first. All three proofs are presented here together with commentary on their mathematical and historical significance.</p></div>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"65 ","pages":"Pages 1-13"},"PeriodicalIF":0.5,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135408478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Newton on constructions in geometry","authors":"Viktor Blåsjö","doi":"10.1016/j.hm.2023.09.002","DOIUrl":"10.1016/j.hm.2023.09.002","url":null,"abstract":"<div><p>Newton was critical of Descartes's constructivist vision of the foundations of geometry organised around certain curve-tracing principles. In unpublished work, Newton outlined a constructivist program of his own, based on his “organic” method of curve tracing, which subsumes Descartes's emblematic turning-ruler-and-moving-curve construction method as a special case, but does not suffer from the latter's flaw of being unable to trace all conics. This Newtonian program has been little studied and is more thoughtful and technically substantive than is commonly recognised. It also clashes with, and arguably supersedes and improves upon, Newton's perhaps better known earlier statements on the subject.</p></div>","PeriodicalId":51061,"journal":{"name":"Historia Mathematica","volume":"65 ","pages":"Pages 14-29"},"PeriodicalIF":0.5,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0315086023000666/pdfft?md5=cfffb05a2f2f6ca7ed57de11fa0b2c09&pid=1-s2.0-S0315086023000666-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135614706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"哲学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}