EN-16
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 w. 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: 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
.
: Function for performing numerical integration using the Gauss-Kronrod
method. Natural Display input syntax is
∫
a
b
f
(
x
)
dx
, 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
=
, 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
))
=
a
b
=
f(a) + f(a+1) + f(a+2) + ...+ f(b). Natural Display input syntax is
Σ
(
f
(
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): Pol, Rec. The following cannot
be used in
f(x), a, or b: ∫, d/dx, Σ.
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