Function Calculations
For actual operations using each function, see the “Examples” section following the list below.
: Π is displayed as 3.141592654, but Π = 3.14159265358980 is used for internal calculations.
e: e is displayed as 2.718281828, but e = 2.71828182845904 is used for internal calculations.
sin, cos, tan, sin−1, cos−1, tan−1 : Trigonometric functions. Specify the angle unit before performing calculations. See 
1.
sinh, cosh, tanh, sinh−1, cosh−1, tanh−1 : Hyperbolic functions. Input a function from the menu that appears when you press E. The angle unit setting does not affect calculations. See 
2.
°, r, g : These functions specify the angle unit. ° specifies degrees, r radians, and g grads. Input a function from the menu that appears when you perform the following key operation: (DRG). See 
3.
, : Exponential functions. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See 
4.
log: Logarithmic function. Use the :key to input logab as log (a, b). Base 10 is the default setting if you do not input anything for a. The key also can be used for input, but only while Natural Display is selected. In this case, you must input a value for the base. See 
5.
ln: Natural logarithm to base e. See 
6.
x2, x3, x9, , , , x−1 : Powers, power roots, and reciprocals. Note that the input methods for x9, , , and are different depending upon whether you are using Natural Display or Linear Display. See 
7.
Note: The following functions cannot be input in consecutive sequence: x2, x3, x9, x−1. If you input 277, for example, the final 7will be ignored. To input 222 , input 27, press the B key, and then press 7().
Pol, Rec : Pol converts rectangular coordinates to polar coordinates, while Rec converts polar coordinates to rectangular coordinates. See 
8.
Pol(x, y) = (r, θ) |
| Rec(r, θ) = (x, y) Specify the angle unit before | ||||||||||
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| The calculation result for r and θ |
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| Calculation result Θ is displayed |
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Rectangular |
| Polar | in the range of −180° Θ | |||||||||
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Coordinates (Rec) |
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x! : Factorial function. See 
9.
Abs : Absolute value function. Note that the input method is different depending upon whether you are using Natural Display or Linear Display. See 
10.
Ran# : Generates a 
11 .
RanInt# : For input of the function of the form RanInt#(a, b), which generates a random integer within the range of a to b. See 
12 .
C