User Manual
E-14
°,
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: 1G(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 l key to input log
a
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
5
.
ln
: Natural logarithm to base e . See
6
.
x
2
, x
3
, x ^, ), #, ", x
−1
: Powers, power roots, and reciprocals. Note
that the input methods for
x ^, ), #, 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:
x
2
, x
3
, x ^, x
−1
. If you input 2 ww, for example, the final w will be ignored.
To input
2
2
2
, input 2 w, press the d key, and then press w( B).
•
x
2
, x
3
, x
−1
can be used in complex number calculations.
: Function for performing numerical integration using the Gauss-Kronrod
method. Natural Display input syntax is
∫
a
b
f
(
x
)
, while Linear Display input
syntax is
∫
(
f
(
x
)
, a , b , tol ). tol specifies tolerance, which becomes 1 ×
10
–5
when nothing is input for tol . Also see “Integration and Differential
Calculation Precautions” and “Tips for Successful Integration Calculations”
for more information. See
8
.
F: Function for approximation of the derivative based on the central
difference method. Natural Display input syntax is
dx
d
(
f
(
x
))
x
=
a
, while
Linear Display input syntax is
dx
d
(
f
(
x
)
, a , tol ). tol specifies tolerance,
which becomes 1 × 10
–10
when nothing is input for tol . Also see “Integration
and Differential Calculation Precautions” for more information. See
9
.
8: Function that, for a specified range of f ( x ), determines sum
Σ
(
f
(
x
))
x
=
a
b
=
f ( a ) + f ( a +1) + f ( a +2) + ...+ f ( b ). Natural Display input syntax is
Σ
(
f
(
x
))
x
=
a
b
,
while Linear Display input syntax is Σ ( f ( x ), a , b ). a and b are integers that
can be specified within the range of –1 × 10
10
a b 1 × 10
10
. See
10
.
Note: The following cannot be used in f ( x ), a , or b : Pol, Rec, ∫ , d / dx , Σ .
Pol, Rec : Pol converts rectangular coordinates to polar coordinates, while
Rec converts polar coordinates to rectangular coordinates. See
11
.
Pol(
x , y ) = ( r , ) Rec( r , ) = ( x , y )
Rectangular Polar
Coordinates (Rec) Coordinates (Pol)
Specify the angle unit before
performing calculations.
The calculation result for
r and
and for
x and y are each assigned
respectively to variables X and Y.
Calculation result
θ
is displayed
in the range of −180°
θ
180°.