{"id":109,"date":"2019-08-11T21:56:48","date_gmt":"2019-08-11T21:56:48","guid":{"rendered":"https:\/\/hadron893716717.wordpress.com\/?p=109"},"modified":"2020-09-06T20:02:35","modified_gmt":"2020-09-06T20:02:35","slug":"synthetic-geometry-and-euclids-elements","status":"publish","type":"post","link":"https:\/\/sites.imsa.edu\/hadron\/2019\/08\/11\/synthetic-geometry-and-euclids-elements\/","title":{"rendered":"Synthetic Geometry and Euclid&#8217;s Elements"},"content":{"rendered":"\r\n<h4 class=\"has-text-align-center wp-block-heading\">Written by Matthew Niemiro<\/h4>\r\n\r\n\r\n\r\n<p>Records on the study of geometry date back thousands of years. Between 2000<br \/>and 1600 BC, ancient Babylonians studied the properties of triangles regarding<br \/>ratio and proportion, and developed what would become the Pythagorean<br \/>Theorem long before Pythagoras (\u201cThe Origins of Geometry,\u201d n.d.). Similar<br \/>geometric analysis took place independently in other ancient civilizations&#8211;the<br \/>Egyptians, for example, utilized their relatively advanced understanding of<br \/>geometry to study astronomical bodies. Ancient civilizations often documented<br \/>their discoveries on clay tablets and papyrus, some of the earliest of which<br \/>coming from ancient Egypt. It was not until the 3rd century BC, however, that a truly definitive mathematical text on geometry was written.<\/p>\r\n\r\n\r\n\r\n<p>Euclid of Alexandria\u2019s Elements (just \u2018Elements\u2019, not \u2018The Elements\u2019 nor \u2018Euclid\u2019s Elements\u2019) is perhaps the most impactful and transformative mathematical text in antiquity. Elements is an index of the extreme, rigorous evaluation of geometry (and, to an extent, elementary number theory) which the ancient Greeks are well known for. The 13 books of Elements are lists of largely synthetic geometrical statements, or geometric \u2018axioms\u2019, in order of increasing complexity. These \u2018axioms\u2019 are statements on geometric properties which are reasoned to be true, and are then used to support more complex statements.<\/p>\r\n\r\n\r\n\r\n<p>What is incredibly striking about Elements is that it uses close to no algebraic<br \/>equations; it is largely a compilation of synthetic proofs, which by definition do not<br \/>use coordinate systems or algebraic equations in their analysis. The text<br \/>expands on some otherwise intuitive ideas to articulate astonishingly advanced<br \/>proofs where numerical labels and coordinates are completely absent.<br \/>It is trivial to say that a line ends at two points&#8211;but how can such simple<br \/>statements become the basis of advanced spherical geometry? How can it be<br \/>used in the analysis of tetrahedrons inscribed in spheres? Such is the level of<br \/>rigor to which the ancient Greeks studied geometrical structures, as compiled in<br \/>Euclid\u2019s Elements.<\/p>\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\">Citations:<br \/>University of Kentucky (2011). The Origins of Geometry. Retrieved from www.msc.uky.edu\/droyster\/courses\/fall11\/MA341\/Classnotes\/Chapter 01-The Origins of Geometry.pdf<\/p>\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\">Figure 1. Euclid\u2019s Windmill proof [Image]. Retrieved from https:\/\/www.britannica.com\/biography\/Euclid-Greek-mathematician<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>Written by Matthew Niemiro Records on the study of geometry date back thousands of years. Between 2000and 1600 BC, ancient Babylonians studied the properties of triangles regardingratio and proportion, and developed what would become the PythagoreanTheorem long before Pythagoras (\u201cThe Origins of Geometry,\u201d n.d.). Similargeometric<\/p>\n","protected":false},"author":568,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[11],"tags":[],"class_list":["post-109","post","type-post","status-publish","format-standard","hentry","category-math"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/posts\/109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/users\/568"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/comments?post=109"}],"version-history":[{"count":1,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/posts\/109\/revisions"}],"predecessor-version":[{"id":703,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/posts\/109\/revisions\/703"}],"wp:attachment":[{"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/media?parent=109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/categories?post=109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.imsa.edu\/hadron\/wp-json\/wp\/v2\/tags?post=109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}