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A–96 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–96 of 100
Touches
¥Ã
expression1
expression2
&
expression
liste1
liste2
&
expression
matrice1
matrice2
&
expression
Retourne
true
s'il est possible de vérifier que
la valeur de
expression1
est supérieure ou
égale à celle de
expression2
.
Retourne
false
s'il est possible de vérifier que
la valeur de
expression1
est strictement
inférieure à celle de
expression2
.
Dans les autres cas, retourne une forme
simplifiée de cette relation.
Utilisation avec des expressions algébriques,
des listes ou des matrices : voir
=
.
!
(factorielle)
TI
-
89 : touche
¥e
TI
-
92 Plus : touches
2
W
!
(factorielle)
expression
!
&
expression
liste
!
&
liste
matrice
!
&
matrice
Retourne la factorielle de l'argument.
Pour une liste ou une matrice, retourne la
liste ou la matrice obtenue en prenant la
factorielle de chaque élément.
5!
¸
120
[1,2;3,4]!
¸
12
624
L
N
M
O
Q
P
&
(append)
TI
-
89 : touche
¥p
(
produit
)
TI
-
92 Plus : touches
2
H
&
(append)
chaîne1
&
chaîne2
&
chaîne
Retourne la chaîne de caractères obtenue
en ajoutant
chaîne2
à la suite de
chaîne1
.
“Hello
&
“Nick”
¸
Hello
Nick
()
(intègre)
Menu MATH/Calculus ou touches
2<
()
(intègre)
(
expression
,
var
[,
val1
]
[,
val2
]
)
&
expression
(
expression
,
var, val1
,
val2
) retourne
l'intégrale de
expression
par rapport à la
variable
var
, quand
var
varie de
val1
à
val2
.
(
expression
,
var
) retourne une primitive.
(
expression
,
var
,
val1
) ajoute la constante
d'intégration
val1
à la primitive obtenue en
utilisant
(
expression
,
var
).
Voir chapitre 27.
Note : voir aussi
nInt()
(page A–50).
(x^2,x)
¸
x
3
3
(x^2,x,c)
¸
x
c
3
3
+
(x^2,x,a,b)
¸
ba
33
33
()
(rac. car)
Touches
2]
()
(rac. car)
(
expression1
)
&
expression
(
liste1
)
&
liste
Retourne la racine carrée de l'argument.
Pour une liste, retourne la liste obtenue en
prenant la racine carrée de chaque élément.
(4)
¸
2
({9,a,4})
¸
{3
a
2}
586


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