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Casio fx-7400G PLUS Manual

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1
–––––
2
n+1
Funktion
° ’ ”
←
° ’ ”
^(
x
y
)
x
y
a
b
/c
STAT
Interne
Stellen
15
Stellen
"
"
"
"
Genauigkeit
Normalerweise
beträgt die
Genauigkeit
±1 an der 10.
Stelle.
*
"
"
"
"
Hinweise
Eingabebereich
|
a|, b, c < 1 × 10
100
0 < b, c
|x| < 1 × 10
100
Sexagesimalanzeige:
|
x| < 1 × 10
7
x > 0:
–1 × 10
100
< y logx < 100
x = 0 : y > 0
x < 0 :
y = n,
(n ist eine Ganzzahl)
Jedoch:
–1 × 10
100
< y log |x| < 100
y > 0 : x
GG
GG
G
0
–1 × 10
100
< logy < 100
y = 0 : x > 0
y < 0 : x = 2n +1,
(
n
GG
GG
G
0, n ist eine Ganzzahl)
Jedoch:
–1 × 10
100
< log |y| < 100
Ganzzahl, Zähler und Nenner
müssen innerhalb von 10
Stellen liegen (einschließlich
Te ilungszeichen).
|x| < 1 × 10
50
|y| < 1 × 10
50
|n| < 1 × 10
100
x
σ
n, y
σ
n, x, y, a, b, c, r :
n
GG
GG
G
0
x
σ
n–1, y
σ
n–1: n
GG
GG
G
0, 1
203
1
––
x
1
––
n
1
––
x
Anhang
* Für eine einzelne Rechnung beträgt der Rechenfehler ±1 an der 10. Stelle. (Bei Exponential-
anzeige beträgt der Rechenfehler ±1 an der niedrigwertigsten Stelle.) Die Fehler summieren sich
bei fortlaufenden Rechnungen, und können dabei groß werden. (Dies trifft auch auf interne
kontinuierliche Rechnungen zu, die zum Beispiel im Falle von ^(
x
y
),
x
y, x!,
3
, nPr, nCr usw.
ausgeführt werden.)
In der Nähe des singulären Punktes einer Funktion und des Wendepunktes summieren sich die
Fehler und können groß werden.
… 217 …


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