{"id":96860,"date":"2025-02-17T13:58:02","date_gmt":"2025-02-17T11:58:02","guid":{"rendered":"https:\/\/www.lovendal.ro\/wp52\/?p=96860"},"modified":"2025-02-17T13:58:02","modified_gmt":"2025-02-17T11:58:02","slug":"omar-khayyam-poetul-persan-care-a-revolutionat-matematica-in-urma-cu-peste-900-de-ani-el-a-calculat-extrem-de-precis-durata-anului-ca-in-zilele-noastre","status":"publish","type":"post","link":"https:\/\/www.lovendal.ro\/wp52\/omar-khayyam-poetul-persan-care-a-revolutionat-matematica-in-urma-cu-peste-900-de-ani-el-a-calculat-extrem-de-precis-durata-anului-ca-in-zilele-noastre\/","title":{"rendered":"Omar Khayyam &#8211; poetul persan care a revolu\u0163ionat matematica \u00een urm\u0103 cu peste 900 de ani. El a calculat extrem de precis durata anului, ca \u00een zilele noastre"},"content":{"rendered":"<p><strong><a href=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2025\/02\/Khayyam.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft  wp-image-96861\" src=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2025\/02\/Khayyam.jpg\" alt=\"\" width=\"344\" height=\"281\" srcset=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2025\/02\/Khayyam.jpg 544w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2025\/02\/Khayyam-300x245.jpg 300w\" sizes=\"auto, (max-width: 344px) 100vw, 344px\" \/><\/a>Omar Khayyam<\/strong> (1048-1131) a fost un savant islamic care a fost poet, dar \u0219i matematician. El a compilat tabele astronomice \u0219i a contribuit la reforma calendarului; de asemenea, a descoperit o metod\u0103 geometric\u0103 de rezolvare a ecua\u021biilor cubice prin intersectarea unei parabole cu un cerc. El a scris mai multe lucr\u0103ri, inclusiv probleme de aritmetic\u0103, o carte despre muzic\u0103 \u0219i una despre algebr\u0103, \u00eenainte de a avea 25 de ani. \u00cen 1070 s-a mutat din <strong>Persia<\/strong> \u00een <strong>Samarkand<\/strong> (ast\u0103zi <strong>Uzbekistan<\/strong>), care este unul dintre cele mai vechi ora\u0219e din Asia Central\u0103. Acolo, Khayyam a scris cea mai cunoscut\u0103 lucrare de algebr\u0103, <strong><em>&#8222;Tratat despre demonstrarea problemelor de algebr\u0103&#8221;<\/em><\/strong>.<\/p>\n<p>Khayyam a fost primul care a spus c\u0103 o ecua\u021bie cubic\u0103 poate avea mai mult dec\u00e2t o solu\u021bie. El a demonstrat existen\u021ba ecua\u021biilor cu dou\u0103 solu\u021bii, dar, din p\u0103cate, nu pare s\u0103 fi constatat c\u0103 o ecua\u0163ie cubic\u0103 poate avea chiar trei solu\u021bii. De asemenea, el s-a ocupat \u0219i de alte probleme matematice, cum ar fi problema coeficien\u021bilor binomiali (care apar \u00een triunghiul lui Pascal) sau teoria frac\u021biilor (prin analiza problemei egalit\u0103\u021bii a dou\u0103 rapoarte prin frac\u021bii continue). Khayyam a mai reu\u015fit marea performan\u0163\u0103 de a m\u0103sura durata anului la 365,24219858156 zile, o valoare extrem de precis\u0103; pentru compara\u021bie, durata calculat\u0103 a anului din zilele noastre este de 365,242190 zile.<\/p>\n<p>\u00cen afara matematicii, Khayyam este cel mai bine cunoscut ca autorul a 600 de poezii scurte de patru linii &#8211;<strong> &#8222;Rubaiyat&#8221;<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Omar Khayyam (1048-1131) a fost un savant islamic care a fost poet, dar \u0219i matematician. El a compilat tabele astronomice \u0219i a contribuit la reforma calendarului; de asemenea, a descoperit o metod\u0103 geometric\u0103 de rezolvare a ecua\u021biilor cubice prin intersectarea &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Omar Khayyam &#8211; poetul persan care a revolu\u0163ionat matematica \u00een urm\u0103 cu peste 900 de ani. El a calculat extrem de precis durata anului, ca \u00een zilele noastre\" class=\"read-more button\" href=\"https:\/\/www.lovendal.ro\/wp52\/omar-khayyam-poetul-persan-care-a-revolutionat-matematica-in-urma-cu-peste-900-de-ani-el-a-calculat-extrem-de-precis-durata-anului-ca-in-zilele-noastre\/#more-96860\" aria-label=\"Cite\u0219te mai multe despre Omar Khayyam &#8211; poetul persan care a revolu\u0163ionat matematica \u00een urm\u0103 cu peste 900 de ani. El a calculat extrem de precis durata anului, ca \u00een zilele noastre\">Cititi mai multe<\/a><\/p>\n","protected":false},"author":1,"featured_media":96861,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[10062,2270,342,1722,679,30,13601,151,3878,215,17119,17322,9803,2284],"class_list":["post-96860","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stiinta","tag-algebra","tag-asia","tag-calendar","tag-matematica","tag-matematician","tag-muzica","tag-omar-khayyam","tag-oras","tag-persia","tag-poet","tag-poezii","tag-samarkand","tag-stiinta","tag-uzbekistan","resize-featured-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Omar Khayyam - poetul persan care a revolu\u0163ionat matematica \u00een urm\u0103 cu peste 900 de ani. 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