{"id":11393,"date":"2010-02-21T21:27:06","date_gmt":"2010-02-21T19:27:06","guid":{"rendered":"http:\/\/www.lovendal.net\/wp52\/?p=11393"},"modified":"2010-02-21T21:27:06","modified_gmt":"2010-02-21T19:27:06","slug":"enigma-celor-sapte-poduri-din-konigsberg","status":"publish","type":"post","link":"https:\/\/www.lovendal.ro\/wp52\/enigma-celor-sapte-poduri-din-konigsberg\/","title":{"rendered":"Enigma celor \u015fapte poduri din Konigsberg"},"content":{"rendered":"

\"bridgea6c\"<\/a>Vechiul ora\u015f german Konigsberg, \u00een care s-a n\u0103scut Kant (dup\u0103 cel de al doilea r\u0103zboi mondial a devenit enclav\u0103\u00a0 ruseasc\u0103, primind numele Kaliningrad) este traversat de r\u00e2ul Pregel, \u00eenainte de v\u0103rsarea lui \u00een Marea Baltic\u0103. Pentru a trece dintr-o parte \u00een alta a ora\u015fului, locuitorii trebuiau s\u0103 treac\u0103 peste \u015fapte poduri, care f\u0103ceau leg\u0103tura \u00eentre diferite zone ale acestuia. Ei i-au trimis celebrului matematician Euler o scrisoare, rug\u00e2ndu-l s\u0103 rezolve urm\u0103toarea problem\u0103: pot fi parcurse toate cele \u015fapte poduri, \u00eentr-o singur\u0103 zi, astfel \u00eenc\u00e2t s\u0103 trecem o singur\u0103 dat\u0103, \u00eentr-un sens sau \u00een altul, pe fiecare pod?<\/p>\n

Euler n-a reu\u015fit s\u0103 demonstreze c\u0103 este posibil. \u00centr-adev\u0103r, v\u0103 pute\u0163i convinge singuri c\u0103 – orice traseu a\u0163i alege pentru a v\u0103 \u00eentoarce \u00een zona de unde a\u0163i plecat – sunte\u0163i nevoit s\u0103 traversa\u0163i unul din poduri de dou\u0103 ori. A\u015fa a ap\u0103rut o nou\u0103 ramur\u0103 a matematicii, topologia, ale c\u0103rei \u00eenceputuri se datoreaz\u0103 lui L. Euler \u015fi K. Gauss (1777 -1855), care, la \u00eenceput, a fost numit\u0103 \u201egeometria situs” (geometria locurilor).<\/p>\n","protected":false},"excerpt":{"rendered":"

Vechiul ora\u015f german Konigsberg, \u00een care s-a n\u0103scut Kant (dup\u0103 cel de al doilea r\u0103zboi mondial a devenit enclav\u0103\u00a0 ruseasc\u0103, primind numele Kaliningrad) este traversat de r\u00e2ul Pregel, \u00eenainte de v\u0103rsarea lui \u00een Marea Baltic\u0103. Pentru a trece dintr-o parte … <\/p>\n

Cititi mai multe<\/a><\/p>\n","protected":false},"author":1,"featured_media":11394,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[2993,1722,1237,9803],"class_list":["post-11393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiinta","tag-euler","tag-matematica","tag-poduri","tag-stiinta","resize-featured-image"],"yoast_head":"\nEnigma celor \u015fapte poduri din Konigsberg - Secretele lui Lovendal<\/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:\/\/www.lovendal.ro\/wp52\/enigma-celor-sapte-poduri-din-konigsberg\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Enigma celor \u015fapte poduri din Konigsberg\" \/>\n<meta property=\"og:description\" content=\"Vechiul ora\u015f german Konigsberg, \u00een care s-a n\u0103scut Kant (dup\u0103 cel de al doilea r\u0103zboi mondial a devenit enclav\u0103\u00a0 ruseasc\u0103, primind numele Kaliningrad) este traversat de r\u00e2ul Pregel, \u00eenainte de v\u0103rsarea lui \u00een Marea Baltic\u0103. 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