Function Calculation Input Ranges And Precision - Casio fx-991ZA PLUS II User Manual

Precision

Function Calculation Input Ranges and Precision

Functions
sinx
cosx
tanx
-1 -1
sin x, cos x
-1
tan
x
sinhx, coshx
-1
sinh x
-1
cosh
x
tanhx
-1
tanh x
logx, lnx
x
10
x
e
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
Deg
0 ≦ |x| < 157079632,7
Rad
0 ≦ |x| < 1 × 10
Gra
Same as sinx, except when |x| = (2n-1) ×
Deg
90.
Same as sinx, except when |x| = (2n-1) ×
Rad
π/2.
Same as sinx, except when |x| = (2n-1) ×
Gra
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
99
-9,999999999 × 10
99
-9,999999999 × 10
89
9
10
99
99
99
99
-1
99
≦ x ≦ 99,99999999
≦ x ≦ 230,2585092