{"id":5428,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/arctg2\/"},"modified":"2021-02-26T09:50:01","modified_gmt":"2021-02-26T09:50:01","slug":"atan2","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/atan2\/","title":{"rendered":"ARCTG2"},"content":{"rendered":"<h2>\u00davod do funkce ATAN2<\/h2>\n<p>Funkce ATAN2, zn\u00e1m\u00e1 tak\u00e9 jako ARCTG2, je matematick\u00e1 funkce dostupn\u00e1 v MS Excel i Google Sheets. Slou\u017e\u00ed k v\u00fdpo\u010dtu arkustangenty dvou \u010d\u00edsel, co\u017e je aplikace \u010dasto vyu\u017e\u00edvan\u00e1 p\u0159i transformaci kart\u00e9zsk\u00fdch sou\u0159adnic (x, y) na pol\u00e1rn\u00ed sou\u0159adnice (r, \u03b8), kde v\u00fdstupem funkce je \u00fahel \u03b8 v rad\u00e1nech nebo stupn\u00edch.<\/p>\n<h2>Syntaxe funkce<\/h2>\n<p>Syntaxe funkce ATAN2 se li\u0161\u00ed mezi Microsoft Excel a Google Sheets z hlediska po\u0159ad\u00ed argument\u016f.<\/p>\n<ul>\n<li><strong>Excel:<\/strong> <code>ATAN2(x_num, y_num)<\/code><\/li>\n<li><strong>Google Sheets:<\/strong> <code>ATAN2(y_num, x_num)<\/code><\/li>\n<\/ul>\n<p>Argumenty <code>x_num<\/code> a <code>y_num<\/code> reprezentuj\u00ed sou\u0159adnice bodu, pro kter\u00fd chcete vypo\u010d\u00edtat \u00fahel. Je kl\u00ed\u010dov\u00e9 dodr\u017eet spr\u00e1vn\u00e9 po\u0159ad\u00ed argument\u016f, kter\u00e9 se li\u0161\u00ed mezi ob\u011bma platformami.<\/p>\n<h2>P\u0159\u00edklady pou\u017eit\u00ed<\/h2>\n<pre> <code> V Excel: =ATAN2(3, 2) - Vr\u00e1t\u00ed \u00fahel pro sou\u0159adnice x = 2 a y = 3. V Google Sheets: =ATAN2(3, 2) - Zde se y hodnota (3) uv\u00e1d\u00ed jako prvn\u00ed. <\/code> <\/pre>\n<h2>Praktick\u00e9 aplikace funkce<\/h2>\n<h2>P\u0159evod mezi koordin\u00e1tov\u00fdmi syst\u00e9my<\/h2>\n<p>ATAN2 je \u010dasto pou\u017e\u00edv\u00e1na pro p\u0159evod mezi kart\u00e9zsk\u00fdmi a pol\u00e1rn\u00edmi sou\u0159adnicemi, d\u00edky \u010demu\u017e lze jednodu\u0161e ur\u010dit \u00fahel sou\u0159adnicov\u00e9ho bodu.<\/p>\n<pre> <code> P\u0159\u00edklad 1: M\u00e1me bod s kart\u00e9zsk\u00fdmi sou\u0159adnicemi (4,5). V Excel: =ATAN2(5, 4) vy\u00fast\u00ed ve v\u00fdpo\u010det pol\u00e1rn\u00edho \u00fahlu. V\u00fdsledek: 0.89605538457134 radi\u00e1n\u016f (nebo 51.34 stup\u0148\u016f, pokud p\u0159evedete na stupn\u011b s funkc\u00ed RAD2DEG). Ve Google Sheets: =ATAN2(5, 4) - V\u00fdpo\u010det je identick\u00fd, ale je d\u016fle\u017eit\u00e9 spr\u00e1vn\u00e9 po\u0159ad\u00ed argument\u016f. <\/code> <\/pre>\n<h2>V\u00fdpo\u010det sm\u011bru mezi dv\u011bma body<\/h2>\n<p>Funkce ATAN2 je tak\u00e9 u\u017eite\u010dn\u00e1 pro v\u00fdpo\u010det sm\u011bru mezi dv\u011bma body na map\u011b, kter\u00e9 jsou definov\u00e1ny pomoc\u00ed jejich x a y sou\u0159adnic.<\/p>\n<pre> <code> P\u0159\u00edklad 2: M\u00e1me dva body A (x1, y1) = (1, 2) a B (x2, y2) = (4, 6): Vyj\u00e1d\u0159\u00edme zm\u011bny v sou\u0159adnic\u00edch: Delta X = x2 - x1 = 3 a Delta Y = y2 - y1 = 4. Pak pou\u017eijeme ATAN2 k v\u00fdpo\u010dtu \u00fahlu. V Excel: =ATAN2(4, 3) Ve Google Sheets: =ATAN2(4, 3) Ob\u011b funkce vr\u00e1t\u00ed \u00fahel v rad\u00e1nech, kter\u00fd lze p\u0159ev\u00e9st na stupn\u011b. <\/code> <\/pre>\n<p>Je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti, \u017ee interpretace v\u00fdsledk\u016f m\u016f\u017ee vy\u017eadovat dal\u0161\u00ed korekce v z\u00e1vislosti na kvadrantu, ve kter\u00e9m se \u00fahel nach\u00e1z\u00ed, aby byla zaji\u0161t\u011bna spr\u00e1vn\u00e1 orientace \u00fahlu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vr\u00e1t\u00ed arkustangens x-ov\u00e9 a\u00a0y-ov\u00e9 sou\u0159adnice<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282],"tags":[],"class_list":["post-5428","post","type-post","status-publish","format-standard","hentry","category-matematicke-a-trigonometricke"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Funkce ATAN2 (ARCTG2) v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije ATAN2 (ARCTG2) u Excelu i Google tablicama. 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