Casio fx-991AR X User Manual

sinh
-1
x 0 ≦ |x| ≦ 4.999999999 × 10
99
cosh
-1
x 1 ≦ x ≦ 4.999999999 × 10
99
tanhx 0 ≦ |x| ≦ 9.999999999 × 10
99
tanh
-1
x 0 ≦ |x| ≦ 9.999999999 × 10
-1
logx, lnx 0 < x ≦ 9.999999999 × 10
99
10
x
-9.999999999 × 10
99
≦ x ≦ 99.99999999
e
x
-9.999999999 × 10
99
≦ x ≦ 230.2585092
𝑥
0 ≦ x < 1 × 10
100
x
2
|x| < 1 × 10
50
x
-1
|x| < 1 × 10
100
; x ≠ 0
𝑥
3
|x| < 1 × 10
100
x!0 ≦ x ≦ 69 (x is an integer)
nPr
0 ≦ n < 1 × 10
10
, 0 ≦ r ≦ n (n, r are integers)
1 ≦ {n!/(n−r)!} < 1 × 10
100
nCr
0 ≦ n < 1 × 10
10
, 0 ≦ r ≦ n (n, r are integers)
1 ≦ n!/r! < 1 × 10
100
or 1 ≦ n!/(n−r)! < 1 × 10
100
Pol(x, y)
|x|, |y| ≦ 9.999999999 × 10
99
𝑥
2
+𝑦
2
≦ 9.999999999 × 10
99
Rec(r, θ)
0 ≦ r ≦ 9.999999999 × 10
99
θ: Same as sinx
°’ ”
|a|, b, c < 1 × 10
100
; 0 ≦ b, c
The display seconds value is subject to an error of ±1 at
the second decimal place.
°’ ”
|x| < 1 × 10
100
Decimal ↔ Sexagesimal Conversions
0°0’0” ≦ |x| ≦ 9999999°59’59”
x
y
x > 0: -1 × 10
100
< ylogx < 100
x = 0: y > 0
x < 0: y = n,
𝑚
2𝑛 + 1
(m, n are integers)
However: -1 × 10
100
< ylog |x| < 100
𝑦
𝑥
y > 0: x ≠ 0, -1 × 10
100
< 1/x logy < 100
y = 0: x > 0
y < 0: x = 2n+1,
2𝑛 + 1
𝑚
(m ≠ 0; m, n are integers)
However: -1 × 10
100
< 1/x log |y| < 100
a
b
/
c
Total of integer, numerator, and denominator must be 10
digits or less (including separator symbol).
39

Casio fx-991AR X Specifications

General

Brand	Casio
Model	fx-991AR X
Category	Calculator
Language	English