Pi
π
:
π
is displayed as 3.141592654, but
π
= 3.14159265358980 is used for
internal calculations.
Natural Logarithm Base
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
:
Specify the angle unit before performing
calculations.
sin 30° =
1
2
(Angle Unit: Degree)
30
1
2
sinh, cosh, tanh, sinh
-1
, cosh
-1
, tanh
-1
:
Input a function from the menu that
appears when you press
(Hyperbolic Func)*
1
. The angle unit setting
does not affect calculations.
*1 Depending on the calculation mode, you should press
.
∘
,
r
,
g
:
These functions specify the angle unit. ° specifies degree,
r
radian,
and
g
gradian. Input a function from the menu that appears when you
perform the following key operation:
(Angle Unit)*
2
.
π
/2 radians = 90° (Angle Unit: Degree)
(
π
)
2
(Angle Unit)
(
r
)
90
*2 Depending on the calculation mode, you should press
.
,
:
Exponential functions.
e
5
× 2 = 296.8263182
(MathI/MathO)
(
) 5
2
296.8263182
(LineI/LineO)
(
) 5
2
296.8263182
log:
Logarithmic function. Use
to input log
a
b as log (
a
,
b
). Base 10 is
the default setting if you do not input anything for
a
.
log
10
1000 = log 1000 = 3
1000
3
log
2
16 = 4
2
(,) 16
4
The
key also can be used for input, but only while MathI/MathO or
MathI/DecimalO is selected for Input/Output on the setup menu. In this
case, you must input a value for the base.
log
2
16 = 4
2
16
4
ln:
Natural logarithm to base
e
.
ln 90 (= log
e
90) = 4.49980967
90
4.49980967
x
2
,
x
3
,
,
,
,
,
x
-1
:
Powers, power roots, and reciprocals.
(1 + 1)
2+2
= 16
1
1
2
2
16
(5
2
)
3
= 15625
5
15625
32
5
= 2
(MathI/MathO)
(
) 5
32
2
(LineI/LineO)
5
(
) 32
2
2 × 3 = 3 2 =
4.242640687...
(MathI/MathO)
2
3
3 2
(LineI/LineO)
2
3
4.242640687
Pol, Rec:
Pol converts rectangular coordinates to polar coordinates, while
Rec converts polar coordinates to rectangular coordinates.
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