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A–98 Instructions et fonctions
39FRAPPA.DOC Instructions et fonctions Philippe Fortin Revised: 07/28/99 8:10 PM Printed: 08/05/99 12:58 PM Page A–98 of 100
¡
(degré)
Menu MATH/Angle ou touches
2“
]
¡
(degré)
expression
ó
&
valeur
liste
ó
&
liste
matrice
ó
&
matrice
En mode
RADIAN
, multiplie
expression
par
p
/180. En mode
DEGREE
, retourne
expression
sans modification.
Ceci permet d'utiliser un angle exprimé en
degrés alors que la machine est en mode
RADIAN
. (Fonctions trigonométriques et
conversion polaire/rectangulaire.)
En mode
DEGRE
ou
RADIAN :
cos(45
¡
)
¸
2
2
En mode
RADIAN
:
cos({0,
p
/4,90
¡
,30.12
¡
})
¸
{1
0.707…
0
0.864…}
¡
,
¢
,
£
Menu CHAR/Math ou menu CHAR/Punctuation
¡
,
¢
,
£
ou touches
2“
,
,
dd
ó
mm
¢
ss.ss
£
&
expression
dd
nombre de signe quelconque
mm
nombre positif ou nul
ss.ss
nombre positif ou nul
Retourne
dd
+(
mm
/60)+(
ss.ss
/3600).
Ce format d'entrée en base 60 permet
d'entrer un angle en degrés, minutes,
secondes quel que soit le mode angulaire
en cours d'utilisation.
d'entrer un temps exprimé en heures,
minutes, secondes.
Les trois éléments doivent être des nombres.
Il n'est pas possible d'utiliser des expressions
ou des noms de variables.
En mode
DEGREE
:
25°13'17.5"
¸
25.221
...
25°30'
¸
51/2
(angle)
Touches
2’
(angle)
[
rayon
,
²
angle
]
&
vecteur
Saisie d'un vecteur en coordonnées polaires.
[
rayon
,
²
angle_
T
, valeur_Z
]
&
vecteur
Saisie d'un vecteur en coordonnées
cylindriques.
[
rayon
,
²
angle_
T
,
²
angle_
I
]
&
vecteur
Saisie d'un vecteur en coordonnées
sphériques.
(I est mesuré à partir de
l'axe Oz, voir fin du
chapitre 28.)
En mode
RECTANGULAR
:
[r,
²
T
]
¸
[cos(
T
)
¹
r
sin(
T
)
¹
r]
[r,
²T
, z
]
¸
[cos(
T
)
¹
r
sin(
T
)
¹
r
z]
[r,
²T
,
²I
]
¸
[cos(
T
)
¹
sin(
I
)
¹
r
sin(
T
)
¹
sin(
I
)
¹
r
cos(
I
)
¹
r]
(
grandeur
angle
)
&
valeurComplexe
(saisie en coordonnées polaires)
Saisit une valeur complexe en coordonnées
polaires (r
q
). L'
angle
est interprété suivant
le mode angulaire en cours d'utilisation.
En mode
RADIAN
et en mode
Complex
Format RECTANGULAR
:
5+3
i
ì
(10
p
/4)
¸
5
ì
5
ø
2+(3
ì
5
ø
2)
ø
i
¥
¸
ë
2.071…
ì
4.071…
ø
i
588


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