{"id":6590,"date":"2025-07-15T13:34:48","date_gmt":"2025-07-15T13:34:48","guid":{"rendered":"https:\/\/functiontranslator.com\/complexe-argument\/"},"modified":"2021-02-26T08:07:44","modified_gmt":"2021-02-26T08:07:44","slug":"imargument","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/fr\/imargument\/","title":{"rendered":"COMPLEXE.ARGUMENT"},"content":{"rendered":"

La fonction IMARGUMENT, aussi connue sous le nom COMPLEXE.ARGUMENT<\/code> dans certaines versions linguistiques d’Excel et Google Sheets, est utilis\u00e9e pour d\u00e9terminer l’argument d’un nombre complexe. Cet argument repr\u00e9sente l’angle en radians form\u00e9 entre l’axe des r\u00e9els positifs et le vecteur du nombre complexe dans le plan complexe.<\/p>\n

Description de la fonction<\/h2>\n

La syntaxe de la fonction COMPLEXE.ARGUMENT<\/code> est la suivante :<\/p>\n

COMPLEXE.ARGUMENT(nombre_complexe)<\/code><\/pre>\n
O\u00f9 nombre_complexe<\/code> correspond au nombre complexe pour lequel l’argument est requis. Ce nombre peut \u00eatre exprim\u00e9 sous la forme d’une cha\u00eene de caract\u00e8res telle que \u00ab\u00a0a+bi\u00a0\u00bb, ou sous forme d’une r\u00e9f\u00e9rence \u00e0 une cellule contenant la repr\u00e9sentation textuelle du nombre complexe.<\/p>\n
Exemple :<\/p>\n
COMPLEXE.ARGUMENT(\"3+4i\")<\/code><\/pre>\n
Cet exemple renvoie l’argument du nombre complexe 3 + 4i.<\/p>\n
Applications pratiques<\/h2>\n
La fonction IMARGUMENT trouve son utilit\u00e9 dans divers domaines tels que l’ing\u00e9nierie, la physique, ou tout autre domaine n\u00e9cessitant l’analyse de nombres complexes. Voici quelques applications sp\u00e9cifiques :<\/p>\n
Exemple 1 : Calcul de l’angle dans un circuit \u00e9lectrique<\/h2>\n
Dans le domaine de l’ing\u00e9nierie \u00e9lectrique, la tension et le courant peuvent \u00eatre exprim\u00e9s sous forme de nombres complexes. La phase de ces nombres est cruciale pour analyser le d\u00e9phasage entre la tension et le courant.<\/p>\n
Consid\u00e9rons un circuit o\u00f9 la tension est repr\u00e9sent\u00e9e par le nombre complexe 12+5i<\/code> volts. L’angle de phase de la tension peut \u00eatre obtenu de la mani\u00e8re suivante :<\/p>\n
=COMPLEXE.ARGUMENT(\"12+5i\")<\/code><\/pre>\n
Ce calcul permet de d\u00e9terminer l’angle en radians entre la tension et l’axe des r\u00e9els, offrant ainsi une mesure du d\u00e9phasage dans le circuit.<\/p>\n
Exemple 2 : Analyse de signaux<\/h2>\n
En traitement des signaux, les composants des signaux peuvent aussi \u00eatre mod\u00e9lis\u00e9s par des nombres complexes, o\u00f9 la phase et l’amplitude sont essentielles \u00e0 l’analyse.<\/p>\n
Imaginons un signal repr\u00e9sent\u00e9 par 7-3i<\/code>. Pour trouver la phase de ce signal, nous proc\u00e9derions comme suit :<\/p>\n
=COMPLEXE.ARGUMENT(\"7-3i\")<\/code><\/pre>\n
Cette fonction retourne l’angle en radians du vecteur signal par rapport \u00e0 l’axe des r\u00e9els, fournissant une indication sur l’\u00e9volution de la phase du signal avec le temps.<\/p>\n
L’utilisation de cette fonction dans Excel ou Google Sheets permet de simplifier et d’efficaciser la r\u00e9solution de probl\u00e8mes complexes en physique, ing\u00e9nierie et autres sciences appliqu\u00e9es.<\/p>\n","protected":false},"excerpt":{"rendered":"
Renvoie l\u2019aRgument th\u00eata, un angle expRim\u00e9 en Radians<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[316],"tags":[],"class_list":["post-6590","post","type-post","status-publish","format-standard","hentry","category-ingenierie"],"acf":[],"yoast_head":"\nFonction IMARGUMENT (COMPLEXE.ARGUMENT) dans Excel : comment \u00e7a marche, exemples et syntaxe<\/title>\n<meta name=\"description\" content=\"Pr\u00e9sentation de la fonction IMARGUMENT (COMPLEXE.ARGUMENT) d\u2019Excel et Google Sheets. 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