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File name : HDB0R100721_French_text_100426.doc
version : 10/04/26
Fonctions Trigonométrique et Inverse-Tri.
SR-270X dispose de fonctions standard et inverse de
trigonométrique: sin, cos, tan, sin
–1
, cos
–1
et tan
–1
. Voir exemples
24~26.
(Note) : lorsque vous utilisez ces touches, assurez vous que la
calculatrice soit ajustée pour l’unité d’angle que vous
souhaitez.
Fonctions Hyperbolique et Inverse-Hyp.
SR-270X utilise [ HYP ] pour calculer les fonctions hyperbolique et
inverse-hyperbolique: sinh, cosh, tanh, sinh
–1
, cosh
–1
et tanh
–1
.
Pressez [ HYP ] pour afficher le menu puis sélectionnez le nombre
correspondant pour effectuer l’élément de la fonction. Voir exemples
27~28.
(Note) : Lorsque vous utilisez ces touches, assurez-vous que la
calculatrice soit ajustée pour l’unité d’angle que vous
souhaitez.
Transformation de coordonnées
Coordonnées Rectangulaires Coordonnées Polaires
x + y i = r (cos
θ
+ i sin
θ
)
(Note) : Lorsque vous utilisez ces touches, assurez-vous que la
calculatrice soit ajustée pour l’unité d’angle que vous
souhaitez.
La calculatrice peut effectuer la conversion entre des coordonnées
rectangulaires et polaires avec [ 2nd ] [ P R ] et [ 2nd ] [ R P ]. Voir
exemples 29~30.
Probabilités
Cette calculatrice dispose des fonctions de probabilités suivantes
(Voir exemples 31~34.):
[ nPr ] Calcule le nombre de permutations possibles d’un
élément n à un moment donné r.
[ nCr ] Calcule le nombre de combinaisons possibles d’éléments
n à un moment donné r.
[ x ! ] Calcule la factorielle d’une intégrale n spécifiée, quand n
69.
[
RANDM
] Génère un nombre réel aléatoire compris entre 0.000 et
0.999
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