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Function Calculations
For actual operations using each function, see the "Examples" section
following the list below.
π π : π is displayed as 3.141592654, but π = 3.14159265358980 is used for
internal calculations.
e
e
:
is displayed as 2.718281828, but
internal calculations.
sin, cos, tan, sin
angle unit before performing calculations. See
sinh, cosh, tanh, sinh
function from the menu that appears when you press w. The angle unit
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: 1G(DRG'). See
$
%
,
: 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
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:
^,
. If you input 2ww, for example, the final w will be ignored.
x
x
x
x
2
3
−1
,
,
2 2
, input 2w, press the d key, and then press w(B).
To input 2
x
x
x
2
3
−1
•
,
,
can be used in complex number calculations.
: Function for performing numerical integration using the Gauss-Kronrod
method. Natural Display input syntax is
∫
f
(
(
syntax is
10
–5
when nothing is input for
Calculation Precautions" and "Tips for Successful Integration Calculations"
for more information. See
F
: Function for approximation of the derivative based on the central
difference method. Natural Display input syntax is
Linear Display input syntax is
which becomes 1 × 10
and Differential Calculation Precautions" for more information. See
8
: Function that, for a specified range of
f
a
f
a
=
(
) +
(
+1) +
while Linear Display input syntax is Σ(
−1
−1
, cos
, tan
−1
, cosh
−1
x
: Powers, power roots, and reciprocals. Note
^, ), #, and " are different depending upon
x
x
a
b
tol
) ,
,
,
).
8
–10
when nothing is input for
f
a
(
+2) + ...+
e
= 2.71828182845904 is used for
−1
: Trigonometric functions. Specify the
−1
−1
, tanh
: Hyperbolic functions. Input a
2
e
. See
.
6
∫
b
f
a
specifies tolerance, which becomes 1 ×
tol
tol
. Also see "Integration and Differential
.
d
f
x
a
(
(
) ,
dx
f
b
(
). Natural Display input syntax is
f
x
a
(
),
E-20
.
1
.
.
3
b as log (
a
. The & key also
a
.
5
) , while Linear Display input
x
(
d
(
dx
tol
tol
,
).
specifies tolerance,
tol
. Also see "Integration
f
x
(
), determines sum
b
a
b
,
).
and
are integers that
r
radians,
a
b
,
). Base
.
7
, while
f
x
(
))
x
a
=
.
9
b
Σ
f
x
(
(
))
x = a
b
Σ
f
x
(
(
))
x = a
,
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