{"id":5453,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/bitlshift\/"},"modified":"2021-02-26T09:50:52","modified_gmt":"2021-02-26T09:50:52","slug":"bitlshift","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/bitlshift\/","title":{"rendered":"BITLSHIFT"},"content":{"rendered":"

Syntax a pou\u017e\u00edv\u00e1n\u00ed funkce BITLSHIFT<\/h2>\n

Funkce BITLSHIFT<\/strong> v Microsoft Excel a Google Sheets umo\u017e\u0148uje posun bit\u016f \u010d\u00edseln\u00e9 hodnoty vlevo. Jedn\u00e1 se o u\u017eite\u010dn\u00fd n\u00e1stroj pro operace v digit\u00e1ln\u00edm zpracov\u00e1n\u00ed sign\u00e1l\u016f, \u0161ifrov\u00e1n\u00ed a dal\u0161\u00ed technick\u00e9 \u00fa\u010dely, kdy je pot\u0159eba manipulovat s bity \u010d\u00edsel.<\/p>\n

Syntaxe funkce<\/h2>\n

Funkce p\u0159ij\u00edm\u00e1 dva argumenty:<\/p>\n

=BITLSHIFT(\u010d\u00edslo, posun)<\/code><\/pre>\n
    \n
  • \u010d\u00edslo<\/strong> – Cel\u00e9 \u010d\u00edslo, nad kter\u00fdm se provede bitov\u00fd posun.<\/li>\n
  • posun<\/strong> – Ud\u00e1v\u00e1, o kolik pozic se bitov\u00e1 hodnota \u010d\u00edsla posune. Kladn\u00e1 hodnota zna\u010d\u00ed posun vlevo, z\u00e1porn\u00e1 hodnota posun vpravo.<\/li>\n<\/ul>\n
    P\u0159\u00edklady pou\u017eit\u00ed<\/h2>\n
    N\u00e1sleduj\u00ed p\u0159\u00edklady, kde m\u016f\u017ee b\u00fdt funkce BITLSHIFT prakticky vyu\u017eita:<\/p>\n
    1. \u00dakol: Duplikace hodnoty \u010d\u00edsla<\/h2>\n
    Chceme-li nap\u0159\u00edklad ka\u017edou hodnotu v seznamu zdvojn\u00e1sobit, m\u016f\u017eeme vyu\u017e\u00edt bitov\u00fd posun. Posunut\u00ed bit\u016f o jednu pozici vlevo je toti\u017e ekvivalentem n\u00e1soben\u00ed \u010d\u00edslem dva.<\/p>\n
    =BITLSHIFT(A2, 1)<\/code><\/pre>\n\n\n\n\n\n
    P\u016fvodn\u00ed hodnota<\/th>\nV\u00fdsledek<\/th>\n<\/tr>\n
    1<\/td>\n2<\/td>\n<\/tr>\n
    2<\/td>\n4<\/td>\n<\/tr>\n
    3<\/td>\n6<\/td>\n<\/tr>\n<\/table>\n
    Tento jednoduch\u00fd vzorec posune ka\u017ed\u00e9 \u010d\u00edslo v bu\u0148ce A2 o jednu pozici vlevo, co\u017e efektivn\u011b zdvojn\u00e1sobuje jeho hodnotu.<\/p>\n
    2. \u00dakol: Vytvo\u0159en\u00ed masky pro bitov\u00e9 operace<\/h2>\n
    Pot\u0159ebujeme-li vytvo\u0159it bitovou masku s v\u00edce nastaven\u00fdmi bity, m\u016f\u017eeme vyu\u017e\u00edt funkci BITLSHIFT. Nap\u0159\u00edklad, chceme-li masku s prvn\u00edmi \u010dty\u0159mi bity nastaven\u00fdmi na 1 (tj. hodnota 15, bin\u00e1rn\u011b 1111), pou\u017eijeme n\u00e1sleduj\u00edc\u00ed vzorec:<\/p>\n
    =BITLSHIFT(1, 4) - 1<\/code><\/pre>\n
    Tento vzorec posune bitovou hodnotu 1 o \u010dty\u0159i pozice vlevo, \u010d\u00edm\u017e vytvo\u0159\u00ed bin\u00e1rn\u00ed \u010d\u00edslo 10000 (dekadicky 16). Ode\u010dten\u00edm 1 z\u00edsk\u00e1me po\u017eadovanou masku 1111 (dekadicky 15).<\/p>\n
    Funkce BITLSHIFT je neoceniteln\u00e1 pro technick\u00e9 a analytick\u00e9 \u00fa\u010dely, kde je zapot\u0159eb\u00ed prov\u00e1d\u011bt operace na \u00farovni jednotliv\u00fdch bit\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Vr\u00e1t\u00ed hodnotu \u010d\u00edsla posunutou doleva o po\u010det bit\u016f zadan\u00fd v oper\u00e1toru velikost_posunu<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[],"class_list":["post-5453","post","type-post","status-publish","format-standard","hentry","category-inzenyrske"],"acf":[],"yoast_head":"\nFunkce BITLSHIFT v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije BITLSHIFT u Excelu i Google tablicama. 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