{"id":87680,"date":"2026-03-13T11:00:00","date_gmt":"2026-03-13T10:00:00","guid":{"rendered":"https:\/\/aktuelles.uni-frankfurt.de\/?p=87680"},"modified":"2026-03-12T11:24:21","modified_gmt":"2026-03-12T10:24:21","slug":"on-mathematics-day-14-march","status":"publish","type":"post","link":"https:\/\/aktuelles.uni-frankfurt.de\/en\/english\/on-mathematics-day-14-march\/","title":{"rendered":"On Mathematics Day, 14 March"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"650\" height=\"450\" src=\"https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2026\/03\/beitragsbild-tag-der-mathematik-2026.jpg\" alt=\"\" class=\"wp-image-87679\" srcset=\"https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2026\/03\/beitragsbild-tag-der-mathematik-2026.jpg 650w, https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2026\/03\/beitragsbild-tag-der-mathematik-2026-300x208.jpg 300w, https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2026\/03\/beitragsbild-tag-der-mathematik-2026-500x346.jpg 500w, https:\/\/aktuelles.uni-frankfurt.de\/wp-content\/uploads\/2026\/03\/beitragsbild-tag-der-mathematik-2026-18x12.jpg 18w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Every year on 14th March, mathematics enthusiasts celebrate Pi Day, dedicated to the circle constant \u03c0, which is used to calculate the circumference and area of a circle. The commemorative day was invented in the United States, where the date format 3\/14 recalls \u03c0 = 3.1415\u2026 Since 2020, UNESCO has also called for celebrations of the International Day of Mathematics on 14th March.<\/p>\n\n\n\n<p>Circles in a mathematical world unfamiliar to most people are studied by the theoretical mathematician Professor Annette Werner at Goethe University as part of the Collaborative Research Centre\/Transregio GAUS (a Rhine Main Universities\u2019 project). In the world of p-adic numbers, a circle can no longer be visualized in the usual way\u2014it has an infinite number of centers. <\/p>\n\n\n\n<p>The research magazine Forschung Frankfurt reported on her investigations in the issue titled \u201cAlien Worlds\u201d:<\/p>\n\n\n\n<p><a href=\"https:\/\/www.uni-frankfurt.de\/183753189\/forschung-frankfurt-issue-1-2023-alien-worlds-a-circle-with-an-infinite-number-of-midpoints.pdf\">A circle with an infinite number of midpoints. The fascinating world of p-adic geometry.<\/a><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Every year on 14th March, mathematics enthusiasts celebrate Pi Day, dedicated to the circle constant \u03c0, which is used to calculate the circumference and area of a circle. The commemorative [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":87679,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":""},"categories":[126,254],"tags":[240],"post_folder":[],"class_list":["post-87680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-english","category-research","tag-mathematics"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>On Mathematics Day, 14 March | Aktuelles aus der Goethe-Universit\u00e4t Frankfurt<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aktuelles.uni-frankfurt.de\/en\/english\/on-mathematics-day-14-march\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"On Mathematics Day, 14 March | Aktuelles aus der Goethe-Universit\u00e4t Frankfurt\" \/>\n<meta property=\"og:description\" content=\"Every year on 14th March, mathematics enthusiasts celebrate Pi Day, dedicated to the circle constant \u03c0, which is used to calculate the circumference and area of a circle. 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