{"id":1387,"date":"2021-03-14T14:56:03","date_gmt":"2021-03-14T14:56:03","guid":{"rendered":"http:\/\/radamichal.cz\/?p=1387"},"modified":"2021-03-14T21:01:40","modified_gmt":"2021-03-14T21:01:40","slug":"svatek-cisla-%cf%80-pi-ludolfovo-cislo","status":"publish","type":"post","link":"https:\/\/radamichal.cz\/?p=1387","title":{"rendered":"Sv\u00e1tek \u010d\u00edsla \u03c0 (P\u00ed = Ludolfovo \u010d\u00edslo)"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"750\" height=\"300\" src=\"http:\/\/radamichal.cz\/wp-content\/uploads\/2021\/03\/pi-day-750x300-1.jpg\" alt=\"\" class=\"wp-image-1389\" srcset=\"https:\/\/radamichal.cz\/wp-content\/uploads\/2021\/03\/pi-day-750x300-1.jpg 750w, https:\/\/radamichal.cz\/wp-content\/uploads\/2021\/03\/pi-day-750x300-1-300x120.jpg 300w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/figure>\n\n\n\n<p>Dnes jsem si na facebooku sv\u00e9ho <a href=\"https:\/\/www.janskorepa.com\/\" data-type=\"URL\" data-id=\"https:\/\/www.janskorepa.com\/\">zn\u00e1m\u00e9ho<\/a>  v\u0161iml, \u017ee m\u00e1 sv\u00e1tek \u010d\u00edslo <strong>\u03c0<\/strong> &#8211; P\u00ed (Ludolfovo \u010d\u00edslo). Jak z matematiky v\u00edme, tak d\u00edky tomuto \u010d\u00edslu dok\u00e1\u017eeme spo\u010d\u00edtat obvod a obsah kruhu. Samotn\u00e9 \u010d\u00edslo P\u00ed je tak vlastn\u011b d\u00e9lka kru\u017enici s pr\u016fm\u011brem 1.<\/p>\n\n\n\n<p>P\u00ed je p\u0159ibli\u017en\u011b <strong>3,14159265358979323846\u2026<\/strong> &#8211; zkr\u00e1cen\u011b pak <strong>\u03c0<\/strong> po\u010d\u00edt\u00e1me jako 3,14. St\u00e1ty, kde se datum zapisuje tak, \u017ee nejprve zad\u00e1me m\u011bs\u00edc a teprve pot\u00e9 den, tak dnes maj\u00ed datum 3.14 &#8211; tedy hodnotu \u010d\u00edsla <strong>\u03c0<\/strong>, jak s n\u00edm b\u011b\u017en\u011b pracujeme.<\/p>\n\n\n\n<p>Sv\u00e1tek \u010d\u00edsla <strong>\u03c0<\/strong> (tzv. Pi day) byl ustaven ji\u017e fyzikem Larry Shaw v r. 1988. Jak ale sv\u00e1tek P\u00ed oslavit. Nap\u0159. webov\u00e9 str\u00e1nky <a href=\"https:\/\/www.timeanddate.com\/holidays\/fun\/pi-day\">https:\/\/www.timeanddate.com\/holidays\/fun\/pi-day<\/a> nab\u00edz\u00ed mj. i tyto mo\u017enosti:<\/p>\n\n\n\n<ul><li><strong>\u03c0<\/strong> (\u010desk\u00fd \u010dteme p\u00ed, ale v angli\u010dtin\u011b &#8222;pi&#8220; \u010dteme jako &#8222;pai&#8220; &#8211; tedy stejn\u011b jako kol\u00e1\u010d &#8211; &#8222;pie&#8220;) &#8211; m\u016f\u017eeme tak sn\u00edst mnoho kulat\u00fdch kol\u00e1\u010d\u016f :D!<\/li><li>Lze uspo\u0159\u00e1dat sout\u011b\u017e v pe\u010den\u00ed kol\u00e1\u010d\u016f ve tvaru <strong>\u03c0<\/strong><\/li><li>Nebo t\u0159eba shl\u00e9dnout film z r. 1998 od Darren Aronofsky &#8211; trailer zde:<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Pi (1998) Official Trailer\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/jo18VIoR2xU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>  <\/p>\n\n\n\n<p>Na internetu nalezneme ale i spoustu hezk\u00fdch vide\u00ed k \u010d\u00edslu p\u00ed i v \u010de\u0161tin\u011b, tak a\u0165 u\u017e si vyberete formu oslavy jakoukoli, hlavn\u011b kdy\u017e se bude slavit \ud83d\ude00 a osm\u00e1ci si hlavn\u011b zapamatujte p\u0159ibli\u017enou hodnotu, proto\u017ee se n\u00e1m to je\u0161t\u011b bude hodit :D!<\/p>\n\n\n\n<p>Z \u010desko-\u0159eck\u00e9ho slovn\u00edku jsme se dozv\u011bd\u011bli, \u017ee kol\u00e1\u010d ve staro\u0159e\u010dtin\u011b se tak\u00e9 dal p\u0159elo\u017eit jako \u03c0\u1fd6\u00a0&#8211;  a pro kucht\u00edky tak p\u0159ikl\u00e1d\u00e1m n\u00e1vod na kol\u00e1\u010de s vyu\u017eit\u00edm &#8222;\u0159eck\u00fdch&#8220; ingredienc\u00ed &#8211; <a href=\"https:\/\/www.instructables.com\/Greek-Inspired-Pie-for-Pi-Day\/?fbclid=IwAR0QjiQ7lJ7vTb8AHjX02PnlOZhw5Kg6i9IofPWvkxvnRqz9vsv1vg6-M4M\">https:\/\/www.instructables.com\/Greek-Inspired-Pie-for-Pi-Day\/?fbclid=IwAR0QjiQ7lJ7vTb8AHjX02PnlOZhw5Kg6i9IofPWvkxvnRqz9vsv1vg6-M4M<\/a> ! Dobrou chu\u0165!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dnes jsem si na facebooku sv\u00e9ho zn\u00e1m\u00e9ho v\u0161iml, \u017ee m\u00e1 sv\u00e1tek \u010d\u00edslo \u03c0 &#8211; P\u00ed (Ludolfovo \u010d\u00edslo). Jak z matematiky v\u00edme, tak d\u00edky tomuto \u010d\u00edslu dok\u00e1\u017eeme spo\u010d\u00edtat obvod a obsah kruhu. Samotn\u00e9 \u010d\u00edslo P\u00ed je tak vlastn\u011b d\u00e9lka kru\u017enici s pr\u016fm\u011brem 1. P\u00ed je p\u0159ibli\u017en\u011b 3,14159265358979323846\u2026 &#8211; zkr\u00e1cen\u011b pak \u03c0 po\u010d\u00edt\u00e1me jako 3,14. St\u00e1ty, kde &hellip; <a href=\"https:\/\/radamichal.cz\/?p=1387\" class=\"more-link\">Pokra\u010dovat ve \u010dten\u00ed<span class=\"screen-reader-text\"> &#8222;Sv\u00e1tek \u010d\u00edsla \u03c0 (P\u00ed = Ludolfovo \u010d\u00edslo)&#8220;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[36,33,37,35,34,32],"_links":{"self":[{"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/posts\/1387"}],"collection":[{"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/radamichal.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1387"}],"version-history":[{"count":9,"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/posts\/1387\/revisions"}],"predecessor-version":[{"id":1403,"href":"https:\/\/radamichal.cz\/index.php?rest_route=\/wp\/v2\/posts\/1387\/revisions\/1403"}],"wp:attachment":[{"href":"https:\/\/radamichal.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/radamichal.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/radamichal.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}