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936 Annexe A : Instructions et fonctions
nInt() Menu MATH/Calculus intNum()
nInt (
expression, var
,
borne1, borne2
)
expression
Calcul approché d'une intégrale.
L'algorithme utilisé tente d'obtenir une précision
de six chiffres significatifs.
Un message “
questionable accurracy” est
affiché lorsque cet objectif ne semble pas atteint.
nInt(
e
^(ë x^2),x,ë 1,1) ¸ 1.493...
nInt(cos(x),x,ë p,p+1íë12) ¸
ë 1.041...íë12
(cos(x),x,ë p,p+10^(ë 12)) ¸
ë sin(
1
1000000000000
)
ans(1)¥ ¸ ë 1.íë12
Il est possible de calculer une intégrale multiple
en imbriquant plusieurs appels.
Note : Voir aussi
().
nInt(nInt(e^(ë xù y)/(x^2ì y^2),
y,ë x,x),x,0,1) ¸ 3.304…
norm() Menu MATH/Matrix/Norms norme()
norm(
matrice
)
expression
Retourne la norme euclidienne.
norm([1,2;3,4]) ¸ 30
norm([a,b;c,d]) ¸
añ +bñ +cñ +dñ
not Menu MATH/Test non
not
condition
expression
Négation. Retourne true, false ou une expression
simplifiée.
not 2> = 3 ¸ true
not x<2 ¸ x 2
not not innocent ¸ innocent
not
entier1
entier
Opération sur la représentation binaire d'un
entier relatif, en appliquant un
not bit par bit.
On obtient ainsi le complément à 1.
b b
1
0
01
not
La valeur retournée correspond au résultat
obtenu, exprimé dans la base de numération en
cours d'utilisation.
Note : Voir
and pour un complément
d'information.
En mode base Hex :
not 0h7AC36 ¸ 0hFFF853C9
En mode base Bin :
0b100101 4 dec ¸ 37
not 0b100101 ¸
0b11111111111111111111111111011010
ans(1) 4 dec ¸ ë 38
Note : une entrée binaire peut avoir
jusqu'à 32 chiffres (sans compter le
préfixe 0b) ; une entrée hexadécimale
jusqu’à 8 chiffres.
Important : zéro, pas la lettre O.
935


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