Bedienungsanleitung Casio FX-85ES Plus (Seite 15 von 32) (Englisch)

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E-14

Specify the angle unit before

performing calculations.

The calculation result for

r and θ

and for

x and y are each assigned

respectively to variables X and Y.

Calculation result

is displayed

in the range of −180° 

 

180°.

x ! : Factorial function. See

Abs : Absolute value function. Note that the input method is different

depending upon whether you are using Natural Display or Linear Display.

See

Ran# : Generates a 3-digit pseudo random number that is less than 1. The

result is displayed as a fraction when Natural Display is selected. See

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

Function Calculations

For actual operations using each function, see the “Examples” section

following the list below.



: P is displayed as 3.141592654, but P = 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

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

°,

: These functions specify the angle unit. ° specifies degrees,

radians,

and

grads. Input a function from the menu that appears when you perform

the following key operation: (DRG). See

, 

: Exponential functions. Note that the input method is different

depending upon whether you are using Natural Display or Linear Display.

See

log

: Logarithmic function. Use the : key to input log

b 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

: Natural logarithm to base e. See

, x

, 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

Note: The following functions cannot be input in consecutive sequence: x

, x9, x

−1

. If you input 277, for example, the final 7 will be ignored. To

input

, 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

Pol(

x, y) = (r, θ) Rec(r, θ) = (x, y)

Rectangular Polar

Coordinates (Rec) Coordinates (Pol)

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