# Casio fx-82EX User Manual page 21

Precision
Function Calculation Input Ranges and Precision
Functions
sinx
cosx
tanx
x, cos
x
-1
-1
sin
x
-1
tan
sinhx, coshx
x
-1
sinh
x
-1
cosh
tanhx
x
-1
tanh
logx, lnx
x
10
e
x
��
x
2
x
-1
��
3
x!
nPr
nCr
Pol(x, y)
In general, ±1 at the 10th digit for a single
calculation. Precision for exponential display is
±1 at the least signiﬁcant digit. Errors are
cumulative in the case of consecutive
calculations.
Input Range
0 ≦ |x| < 9 × 10
Degree
0 ≦ |x| < 157079632.7
Gradian 0 ≦ |x| < 1 × 10
Degree
Same as sinx, except when |x| = (2n−1) × 90.
Same as sinx, except when |x| = (2n−1) × π/2.
Gradian Same as sinx, except when |x| = (2n−1) × 100.
0 ≦ |x| ≦ 1
0 ≦ |x| ≦ 9.999999999 × 10
0 ≦ |x| ≦ 230.2585092
0 ≦ |x| ≦ 4.999999999 × 10
1 ≦ x ≦ 4.999999999 × 10
0 ≦ |x| ≦ 9.999999999 × 10
0 ≦ |x| ≦ 9.999999999 × 10
0 < x ≦ 9.999999999 × 10
-9.999999999 × 10
-9.999999999 × 10
0 ≦ x < 1 × 10
100
50
|x| < 1 × 10
; x ≠ 0
100
|x| < 1 × 10
100
|x| < 1 × 10
0 ≦ x ≦ 69 (x is an integer)
0 ≦ n < 1 × 10
10
1 ≦ {n!/(n−r)!} < 1 × 10
0 ≦ n < 1 × 10
10
1 ≦ n!/r! < 1 × 10
|x|, |y| ≦ 9.999999999 × 10
2
2
≦ 9.999999999 × 10
��
+ ��
9
10
99
99
99
99
-1
99
≦ x ≦ 99.99999999
99
≦ x ≦ 230.2585092
99
, 0 ≦ r ≦ n (n, r are integers)
100
, 0 ≦ r ≦ n (n, r are integers)
or 1 ≦ n!/(n−r)! < 1 × 10
100
99
99
20
100