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k Fonctions logarithmiques et exponentielles
•Veillez à désigner Comp pour Mode sur l’écran de configuration.
Exemple Opération
log 1,23 (log101,23) = 0,08990511144 l1.23w
log2 8 = 3 <Line>
K4(CALC)6(g)4(log
a
b)2,8)w
<Math>
4(MATH)2(log
a
b) 2e8w
In 90 (loge90) = 4,49980967 I90w
10
1,23
= 16,98243652 !l(10
x
)1.23w
(Pour obtenir l’antilogarithme du
logarithme décimal 1,23)
e
4,5
= 90,0171313 !I(e
x
)4.5w
(Pour obtenir l’antilogarithme du
logarithme népérien 4,5)
(–3)
4
= (–3) × (–3) × (–3) × (–3) = 81 (-3)M4w
–3
4
= –(3 × 3 × 3 × 3) = –81 -3M4w
1
<Line>
7
(= 123
7
) = 1,988647795
7!M(
x
)123w
123
<Math>
!M(
x
)7e123w
<Line>
2 + 3 ×
3
– 4 = 10 2+3*3!M(
x
)64-4w*
1
64
<Math>
2+3*!M(
x
)3e64e-4w
2-4-5
Calculs de fonctions
*
1
^ (x
y
) et
x
ont priorité sur la multiplication
et la division.
#Vous ne pouvez pas utiliser d’expression avec
calcul de différentielle, différentielle
quadratique, intégration, Σ, valeur maximale/
minimale, résolution, RndFix ou log ab à
l’intérieur d’un terme du calcul de log ab.
# Le mode d’écriture linéaire et le mode d’écriture
mathématique produisent des résultats
différents lorsqu’une série de puissances est
saisie, par exemple : 2M3M2.
Mode d’écriture linéaire : 2^3^2 = 64
Mode d’écriture mathématique :
= 512
C’est parce que le mode d’écriture
mathématique traite internement la série de
puissances de la façon suivante : 2^(3^(2)).
86


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