User Manual
α-14
 2. Input Ranges
 Function 
 Input range for real 
number solutions 
 Internal
  digits 
 Precision Notes 
 sin 
x 
  cos x 
  tan x 
 (DEG) | x | < 9 ×  (10 
9 
)°
  (RAD) | 
x | < 5 ×  10 
7  
π  rad
  (GRA) | x | < 1 ×  10 
10 
 grad 
 15 digits 
 As a rule, 
precision is 
 ± 1 at the 
10th digit.* 
 However, for tan 
x  :
  | 
x | ≠  90(2 n +1): DEG
  | 
x | ≠  π /2(2 n +1): RAD
  | 
x | ≠  100(2 n +1): GRA 
 sin 
–1  
x 
cos 
–1  
x 
    tan  
–1  
x 
 | x | < 1 
  "   "  
 | 
x | < 1 ×  10 
100  
 sinh x 
  cosh x
  tanh x 
 | x | < 230.9516564 
 " " 
 | 
x | < 1 × 10 
100  
 sinh 
–1  
x
  cosh 
–1  
x
  tanh 
–1  
x 
 | x | < 1 ×  10 
100  
 " " 
 1 < 
x  < 1 ×  10 
100  
 | x | < 1 
 log 
x 
  ln x 
 1 ×  10 
–99 
 < x  < 1 ×  10 
100  
  "   "  
 •  Complex numbers can be 
used as arguments. 
 10 
x
 e  
x 
 –1 ×  10 
100 
 < x  < 100 
  "   "  
 •  Complex numbers can be 
used as arguments. 
 –1 ×  10 
100 
  < x  < 230.2585092 
'
x
 x  
2  
 0 < x  < 1 ×  10 
100  
  "   "  
 •  Complex numbers can be 
used as arguments. 
 | x | < 1 ×  10 
50  
 1/ x
   3  
'
x 
 | x | < 1 ×  10 
100 
, x  ≠  0 
  "   "  
 •  Complex numbers can be 
used as arguments. 
 | x | < 1 ×  10 
100  
 x  ! 
 0 < x  < 69
  ( x  is an integer) 
  "   "  
 n  P r 
 n  
C r 
 Result < 1 ×  10 
100 
 n  , r  ( n  and r  are integers)
  0 < r  < n , n  < 1 ×  10 
10  
  "   "  
 Pol ( 
x , y )  x 
2 
 + y 
2 
 < 1 × 10 
100  
  "   "  
 Rec
  ( 
r  , 
θ 
) 
 | 
r | < 1 ×  10 
100 
  (DEG) | 
θ 
| < 9 ×  (10 
9 
)°
  (RAD) | 
θ 
| < 5 ×  10 
7  
π  rad
  (GRA) | 
θ 
| < 1 ×  10 
10 
 grad 
  "   "  
 However, for tan 
θ 
 :
  | 
θ 
| ≠  90(2 n +1): DEG
  | 
θ 
| ≠  π /2(2 n +1): RAD
  | 
θ 
| ≠  100(2 n +1): GRA 










