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Annexe B : Référence technique 1017
Méthode 2 : Définissez une variable complexe. Par exemple :
Nombres complexes et mode Degree
Nombres complexes et mode DegreeNombres complexes et mode Degree
Nombres complexes et mode Degree
Le mode Radian est recommandé pour les calculs de nombres complexes. En interne,
la TI-89 Titanium / Voyage™ 200 convertit toutes les valeurs trigonométriques en
radians, mais ne convertit pas les valeurs des fonctions exponentielles, logarithmiques
ou hyperboliques.
Remarque : Si vous utilisez le mode angulaire DEGREE ou GRAD, vous devez
effectuer les entrées en coordonnées polaires sous la forme(rù, q) . En mode DEGREE
ou GRAD une entrée sous la forme r
e
i
ii
i
q
provoque une erreur.
En mode Degree, les identités complexes telles que e^(iq) = cos(q) + i sin(q) ne sont
généralement pas vraies car les valeurs de cos et sin sont converties en radians, alors
que celles de e^( ) ne le sont pas. Par exemple, e^(i45) = cos(45) + i sin(45) est
considéré en interne comme e^(i45) = cos(p/4) + i sin(p/4). Les identitiés complexes
sont toujours vraies en mode Radian.
x+yi!z
z est alors considéré
comme une variable
complexe.
1017


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