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950 Annexe A : Instructions et fonctions
real() Menu MATH/Complex réel()
real(
expression
)
expression
real(
liste
)
liste
real(
matrice
)
matrice
Retourne la partie réelle de l'expression.
Note. Toutes les variables indéfinies sont
considérées comme réelles, sauf si leur nom se
termine par _. Voir aussi
imag().
real(2+3
i
) ¸ 2
real(z) ¸ z
real(z_) ¸ real(z_)
real(x+
i
y) ¸ x
real({a+
i
ù b,3,
i
}) ¸ {a 3 0}
4
44
4Rect Menu MATH/Matrix/Vectors ops 4
44
4Rect
vecteur
4Rect
Affiche
vecteur
en coordonnées rectangulaires [x,
y, z]. Le vecteur doit être un vecteur ligne ou
colonne de dimension 2 ou 3.
4
44
4Rect est uniquement une instruction d'affichage,
et non une fonction de conversion.
On ne peut l'utiliser qu'à la fin d'une ligne, et elle
ne modifie pas le contenu du registre
ans. Voir
aussi 4
Polar.
[3,pà4,pà6]4Rect ¸
[
3ø 2
4
3ø 2
4
3ø 3
2
]
[a, b, c] ¸
[aø cos(b)sin(c)
aø sin(b)sin(c) aø cos(c)]
valeurComplexe
4
44
4Rect
Affiche
valeurComplexe
sous forme rectangulaire
a+b
i
.
valeurComplexe
peut prendre n'importe
quelle forme complexe. Toutefois, une entrée r
e
i
q
cause une erreur en mode
DEGREE.
Note : vous devez utiliser les parenthèses pour
les entrées polaires (rq).
En mode RADIAN :
4
e
^(
i
p/3)4Rect ¸ 223+⋅
i
(4p/3)4Rect ¸
223+⋅
i
En mode GRAD :
(1100)4Rect ¸
i
En mode DEGREE :
(460)4Rect ¸ 223+⋅
i
Note : pour taper 4
44
4Rect à partir du clavier,
appuyez sur 2 pour l'opérateur 4
44
4.
Pour taper , appuyez sur 2’.
949


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