Function Calculations - Casio CALCULATOR FX-85GT PLUS User Manual

Function Calculations

For actual operations using each function, see the "Examples" section
following the list below.
: is displayed as 3.141592654, but
internal calculations.
e e
: is displayed as 2.718281828, but
internal calculations.
sin, cos, tan, sin
unit before performing calculations. See
sinh, cosh, tanh, sinh
function from the menu that appears when you press
setting does not affect calculations. See
r g
°, , : These functions specify the angle unit. ° specifies degrees,
g
and grads. Input a function from the menu that appears when you perform
the following key operation:
, : 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
10 is the default setting if you do not input anything for
can be used for input, but only while Natural Display is selected. In this
case, you must input a value for the base. See
ln: Natural logarithm to base
2 3
x x x
, , , ,
that the input methods for
whether you are using Natural Display or Linear Display. See
Note: The following functions cannot be input in consecutive sequence:
x x x
3 −1
, , . If you input 2
2 2
input 2 , input 2
Pol, Rec : Pol converts rectangular coordinates to polar coordinates, while
Rec converts polar coordinates to rectangular coordinates. See
x y r
Pol( , ) = ( , )
Rectangular
Coordinates (Rec)
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 .
10
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
−1 −1 −1
, cos , tan
−1
, cosh
e
. See
−1
x
, , : Powers, power roots, and reciprocals. Note
x
,
, for example, the final
, press the
r
Rec( , ) = (
Polar
Coordinates (Pol)
9
= 3.14159265358980 is used for
e
= 2.71828182845904 is used for
: Trigonometric functions. Specify the angle
.
1
−1 −1
, tanh : Hyperbolic functions. Input a
.
2
(DRG ). See
key to input log
.
6
, , and and are different depending upon are different depending upon
key, and then press
x y
, )
Specify the angle unit before
performing calculations.
The calculation result for
and for
respectively to variables X and Y.
Calculation result
in the range of −180°
180°.
.
E-18
. The angle unit
.
3
a
b as log (
a
a
. The
.
5
7
will be ignored. To
(
x y
and are each assigned
is displayed
r
radians,
b
, ). Base
key also
.
x
2
,
).
.
8
r
and
.
11